正在加载视频...

视频加载失败

返回首页

🇵🇰🚀 Pakistan Completes EO-3 Launch, Accelerating Its Satellite Constellation Drive Pakistan has successfully placed its PRSC EO-3 Earth Observation Satellite into orbit, marking a significant step in the country’s expanding space programme. The satellite, developed domestically by SUPARCO, was launched from China’s Taiyuan Satellite Launch Center, underscoring a model...

Defence_Index's profile picture

Defence Index

254,796 subscribers

14,724 次观看 • 3 个月前 •via X (Twitter)

LIVE

Anya Rossi• Live Now

Private livecam show

0 条评论

暂无评论

原始帖子的评论将显示在这里

相关视频

Pakistan's latest Earth observation satellite is currently being transported to a launch site in China ahead of its scheduled liftoff on December 25, 2025 via a Smart Dragon-3 (SD-3) rocket. SUPARCO's upcoming mission will further enhance the country's capabilities in remote sensing and geospatial monitoring! 🇵🇰🇨🇳
0:16

Pakistan's latest Earth observation satellite is currently being transported to a launch site in China ahead of its scheduled liftoff on December 25, 2025 via a Smart Dragon-3 (SD-3) rocket. SUPARCO's upcoming mission will further enhance the country's capabilities in remote sensing and geospatial monitoring! 🇵🇰🇨🇳

Hafsah Malik

36,142 次观看 • 7 个月前

‼️🇩🇪🇺🇸 BREAKING - The world's leading supplier of satellite imagery, Planet Labs, plans to launch production of its next-generation high-precision Pelican satellites in Berlin, investing tens of millions of euros in the project. According to the company, this move will double the total production capacity of the Pelican fleet, complementing the existing line at the company's headquarters in San Francisco, and underscores the strategic importance of Germany, where Planet Labs already employs about 150 people. The expansion is directly linked to a multi-year contract worth 240 million euros that Planet Labs Germany GmbH received from the German government to "support peace and security in Europe," providing NATO with access to timely satellite imagery in their areas of operational interest. Thus, Planet Labs, founded by three NASA scientists and operating the world's largest Earth observation satellite fleet, is strengthening its position in Europe, supporting German efforts to develop the space sector. See the latest updates with us: NSTRIKE
0:16

‼️🇩🇪🇺🇸 BREAKING - The world's leading supplier of satellite imagery, Planet Labs, plans to launch production of its next-generation high-precision Pelican satellites in Berlin, investing tens of millions of euros in the project. According to the company, this move will double the total production capacity of the Pelican fleet, complementing the existing line at the company's headquarters in San Francisco, and underscores the strategic importance of Germany, where Planet Labs already employs about 150 people. The expansion is directly linked to a multi-year contract worth 240 million euros that Planet Labs Germany GmbH received from the German government to "support peace and security in Europe," providing NATO with access to timely satellite imagery in their areas of operational interest. Thus, Planet Labs, founded by three NASA scientists and operating the world's largest Earth observation satellite fleet, is strengthening its position in Europe, supporting German efforts to develop the space sector. See the latest updates with us: NSTRIKE

NSTRIKE

85,267 次观看 • 9 个月前

🚨 A SATELLITE JUST REVEALED SOMETHING SHOCKING: GPS JAMMING IS FAR MORE WIDESPREAD THAN ANYONE REALIZED. An experimental navigation satellite called Pulsar-0, flying just 500 km above Earth, has mapped GPS signal tampering from space for the first time and the scale surprised even the engineers who built it. As soon as the satellite passed over Europe and parts of the Middle East, its GPS receiver showed massive signal degradation. In the worst areas, signal strength dropped from a normal 40 decibels all the way down to just 10 decibels. Why this matters: • Ground-based jammers (used in conflicts like Ukraine and the Middle East) are now reaching all the way into low Earth orbit • Satellites like Starlink that rely on GPS for collision avoidance and positioning are being affected across a huge region from France to the borders of Pakistan • When GPS drops out, satellites can’t accurately point their antennas, maintain formation, or safely maneuver • This isn’t just a military problem it threatens the growing network of commercial satellites we increasingly depend on The deeper implication: We’ve long known that GPS signals on the ground can be jammed. What we didn’t fully appreciate is how far those jamming signals reach into space. Even satellites in low Earth orbit the backbone of global communications, Earth observation, and future mega-constellations are now operating in an increasingly hostile electromagnetic environment. Xona’s upcoming constellation aims to fix this with signals 100 times stronger than traditional GPS. But the bigger question remains: as more nations and groups weaponize jamming and spoofing, how resilient will our orbital infrastructure actually be? How concerned are you that GPS jamming is now reaching into space and affecting satellites? Follow for more frontier space technology and the hidden vulnerabilities of our orbital systems.
0:10

🚨 A SATELLITE JUST REVEALED SOMETHING SHOCKING: GPS JAMMING IS FAR MORE WIDESPREAD THAN ANYONE REALIZED. An experimental navigation satellite called Pulsar-0, flying just 500 km above Earth, has mapped GPS signal tampering from space for the first time and the scale surprised even the engineers who built it. As soon as the satellite passed over Europe and parts of the Middle East, its GPS receiver showed massive signal degradation. In the worst areas, signal strength dropped from a normal 40 decibels all the way down to just 10 decibels. Why this matters: • Ground-based jammers (used in conflicts like Ukraine and the Middle East) are now reaching all the way into low Earth orbit • Satellites like Starlink that rely on GPS for collision avoidance and positioning are being affected across a huge region from France to the borders of Pakistan • When GPS drops out, satellites can’t accurately point their antennas, maintain formation, or safely maneuver • This isn’t just a military problem it threatens the growing network of commercial satellites we increasingly depend on The deeper implication: We’ve long known that GPS signals on the ground can be jammed. What we didn’t fully appreciate is how far those jamming signals reach into space. Even satellites in low Earth orbit the backbone of global communications, Earth observation, and future mega-constellations are now operating in an increasingly hostile electromagnetic environment. Xona’s upcoming constellation aims to fix this with signals 100 times stronger than traditional GPS. But the bigger question remains: as more nations and groups weaponize jamming and spoofing, how resilient will our orbital infrastructure actually be? How concerned are you that GPS jamming is now reaching into space and affecting satellites? Follow for more frontier space technology and the hidden vulnerabilities of our orbital systems.

TheNewPhysics

50,100 次观看 • 1 个月前

Starlink just launched its first European satellite-to-phone service. Today. Virgin Media O2 switched on O2 Satellite on February 26. It is the first commercial satellite-to-smartphone data service in the UK and in all of Europe. Powered by Starlink Direct to Cell. What it does: If you're an O2 customer with a Samsung Galaxy S25, your phone automatically connects to Starlink satellites when you move beyond traditional cell coverage. No special hardware. No satellite phone. Your regular smartphone connects directly to space. O2's UK landmass coverage jumped overnight from 89% to 95%. That's new connectivity across an area roughly two-thirds the size of Wales, according to Virgin Media O2. At launch, the service supports text messaging and a limited set of apps including WhatsApp, Google Maps, Facebook Messenger, and X. Standard voice calls are not yet supported. Speeds are estimated around 4Mbps. More devices and apps are expected to follow. 650+ Starlink satellites now support Direct to Cell. SpaceX has signed 11 carrier partnerships to date, with similar services already live in the U.S. through T-Mobile. £3 per month. That's what O2 is charging to keep you connected in places where there was zero signal yesterday. Starlink is becoming the invisible backup layer for phone networks worldwide
0:10

Starlink just launched its first European satellite-to-phone service. Today. Virgin Media O2 switched on O2 Satellite on February 26. It is the first commercial satellite-to-smartphone data service in the UK and in all of Europe. Powered by Starlink Direct to Cell. What it does: If you're an O2 customer with a Samsung Galaxy S25, your phone automatically connects to Starlink satellites when you move beyond traditional cell coverage. No special hardware. No satellite phone. Your regular smartphone connects directly to space. O2's UK landmass coverage jumped overnight from 89% to 95%. That's new connectivity across an area roughly two-thirds the size of Wales, according to Virgin Media O2. At launch, the service supports text messaging and a limited set of apps including WhatsApp, Google Maps, Facebook Messenger, and X. Standard voice calls are not yet supported. Speeds are estimated around 4Mbps. More devices and apps are expected to follow. 650+ Starlink satellites now support Direct to Cell. SpaceX has signed 11 carrier partnerships to date, with similar services already live in the U.S. through T-Mobile. £3 per month. That's what O2 is charging to keep you connected in places where there was zero signal yesterday. Starlink is becoming the invisible backup layer for phone networks worldwide

tetsuo

13,518 次观看 • 5 个月前

🚨 OFFICIAL ANNOUNCEMENT!🚨 Pakistan🇵🇰 has officially announced to inducted China’s HQ-19 Air Defense System 🇵🇰✅🇨🇳—a true game-changer in missile defense and space warfare! 🎯 Target: Indian Ballistic Missiles (Agni Series) India’s Agni series ballistic missiles, known for their long range and nuclear capability, are among the most serious strategic threats in the region. The HQ-19 system uses advanced phased-array radars and infrared sensors to detect and track these missiles immediately after launch, often while they’re still ascending. It calculates their trajectory in real-time, enabling HQ-19 to fire its interceptor missiles that use a “hit-to-kill” kinetic impactor — meaning the interceptor destroys the target by direct collision without explosives. This technology ensures high accuracy and reliability against fast-moving, high-altitude targets like the Agni missiles. 🛰️ Anti-Satellite (ASAT) Capability HQ-19’s capability isn’t limited to missiles — it can also target and destroy satellites in low Earth orbit (LEO), including Indian military reconnaissance and communication satellites. By using high-precision tracking radars and infrared sensors, HQ-19 locks onto satellites orbiting at altitudes of 200–2,000 km. It launches interceptor missiles equipped with kinetic kill vehicles (KKV) designed to collide with satellites at extremely high speeds, destroying them through sheer impact force. This effectively neutralizes enemy space-based surveillance, communication, and navigation assets — crippling India’s space advantage. ⚙️ How Does HQ-19 Intercept? 1. Detection: Powerful radars scan the skies to identify ballistic missile launches or satellite movements. 2. Tracking & Targeting: Infrared sensors track the heat signature, while onboard computers predict the exact trajectory. 3. Interceptor Launch: HQ-19 fires a fast, maneuverable interceptor missile equipped with a kinetic kill vehicle. 4. Kill Vehicle Guidance: The kill vehicle uses onboard sensors and thrusters to adjust its path mid-flight, ensuring a direct collision with the target. 5. Destruction: The interceptor collides with the missile or satellite at extremely high velocity, destroying it through kinetic energy alone—no explosives needed. ⚡ This official procurement dramatically boosts Pakistan’s defense against India’s missile threat and space assets — signaling a new era of air and space dominance! 👉 With HQ-19, Pakistan sends a crystal-clear message: No missile, no satellite is untouchable anymore! 💪🇵🇰
0:15

🚨 OFFICIAL ANNOUNCEMENT!🚨 Pakistan🇵🇰 has officially announced to inducted China’s HQ-19 Air Defense System 🇵🇰✅🇨🇳—a true game-changer in missile defense and space warfare! 🎯 Target: Indian Ballistic Missiles (Agni Series) India’s Agni series ballistic missiles, known for their long range and nuclear capability, are among the most serious strategic threats in the region. The HQ-19 system uses advanced phased-array radars and infrared sensors to detect and track these missiles immediately after launch, often while they’re still ascending. It calculates their trajectory in real-time, enabling HQ-19 to fire its interceptor missiles that use a “hit-to-kill” kinetic impactor — meaning the interceptor destroys the target by direct collision without explosives. This technology ensures high accuracy and reliability against fast-moving, high-altitude targets like the Agni missiles. 🛰️ Anti-Satellite (ASAT) Capability HQ-19’s capability isn’t limited to missiles — it can also target and destroy satellites in low Earth orbit (LEO), including Indian military reconnaissance and communication satellites. By using high-precision tracking radars and infrared sensors, HQ-19 locks onto satellites orbiting at altitudes of 200–2,000 km. It launches interceptor missiles equipped with kinetic kill vehicles (KKV) designed to collide with satellites at extremely high speeds, destroying them through sheer impact force. This effectively neutralizes enemy space-based surveillance, communication, and navigation assets — crippling India’s space advantage. ⚙️ How Does HQ-19 Intercept? 1. Detection: Powerful radars scan the skies to identify ballistic missile launches or satellite movements. 2. Tracking & Targeting: Infrared sensors track the heat signature, while onboard computers predict the exact trajectory. 3. Interceptor Launch: HQ-19 fires a fast, maneuverable interceptor missile equipped with a kinetic kill vehicle. 4. Kill Vehicle Guidance: The kill vehicle uses onboard sensors and thrusters to adjust its path mid-flight, ensuring a direct collision with the target. 5. Destruction: The interceptor collides with the missile or satellite at extremely high velocity, destroying it through kinetic energy alone—no explosives needed. ⚡ This official procurement dramatically boosts Pakistan’s defense against India’s missile threat and space assets — signaling a new era of air and space dominance! 👉 With HQ-19, Pakistan sends a crystal-clear message: No missile, no satellite is untouchable anymore! 💪🇵🇰

Defense Intelligence

20,333 次观看 • 1 年前

🇺🇸🇨🇳 The U.S. and China are rehearsing space combat, and neither side is saying it out loud. 36,000km above Earth, a U.S. satellite travelling at 10,900 km/h adjusts its orbit and closes in on 2 Chinese satellites until the 3 are almost moving in sync. It passes within 12km. What looks like a gentle dance could be a rehearsal for war. China's military textbooks map out exactly what comes next: deterrence, space blockade, offensive strikes. At a certain rung of the ladder, nothing is off limits: attacks on nuclear sites and energy infrastructure on Earth, launched from orbit, at extremely short notice. Nobody has ever fought a war up there, and nobody knows where the lines are. Source: Financial Times
0:12

🇺🇸🇨🇳 The U.S. and China are rehearsing space combat, and neither side is saying it out loud. 36,000km above Earth, a U.S. satellite travelling at 10,900 km/h adjusts its orbit and closes in on 2 Chinese satellites until the 3 are almost moving in sync. It passes within 12km. What looks like a gentle dance could be a rehearsal for war. China's military textbooks map out exactly what comes next: deterrence, space blockade, offensive strikes. At a certain rung of the ladder, nothing is off limits: attacks on nuclear sites and energy infrastructure on Earth, launched from orbit, at extremely short notice. Nobody has ever fought a war up there, and nobody knows where the lines are. Source: Financial Times

Mario Nawfal

87,486 次观看 • 3 个月前

ISPR Rawalpindi, 3 May 2025 : Pakistan today conducted a successful training launch of the Abdali Weapon System— a surface-to-surface missile with a range of 450 kilometers as part of Ex INDUS. The launch was aimed at ensuring the operational readiness of troops and validating key technical parameters, including the missile’s advanced navigation system and enhanced manoeuvrability features. The training launch was witnessed by the Commander Army Strategic Forces Command, senior officials from the Strategic Plans Division, Army Strategic Forces Command, as well as scientists and engineers from Pakistan’s strategic organizations. The President, Prime Minister of Pakistan, Chairman Joint Chiefs of Staff Committee, and Services Chiefs extended their congratulations to the participating troops, scientists, and engineers. They expressed complete confidence in the operational preparedness and technical proficiency of Pakistan’s Strategic Forces to ensure credible minimum deterrence and safeguard national security against any aggression.
0:11

ISPR Rawalpindi, 3 May 2025 : Pakistan today conducted a successful training launch of the Abdali Weapon System— a surface-to-surface missile with a range of 450 kilometers as part of Ex INDUS. The launch was aimed at ensuring the operational readiness of troops and validating key technical parameters, including the missile’s advanced navigation system and enhanced manoeuvrability features. The training launch was witnessed by the Commander Army Strategic Forces Command, senior officials from the Strategic Plans Division, Army Strategic Forces Command, as well as scientists and engineers from Pakistan’s strategic organizations. The President, Prime Minister of Pakistan, Chairman Joint Chiefs of Staff Committee, and Services Chiefs extended their congratulations to the participating troops, scientists, and engineers. They expressed complete confidence in the operational preparedness and technical proficiency of Pakistan’s Strategic Forces to ensure credible minimum deterrence and safeguard national security against any aggression.

Gharidah Farooqi (T.I.)

46,642 次观看 • 1 年前

🚨 BREAKING: Starcloud just turned Starlink’s laser network into the backbone for orbital AI data centers. A company called Starcloud has ordered 50+ Starlink Mini Laser terminals to equip 25+ future satellites. Not ground stations. Not fiber cables. Direct laser-linked computing nodes in orbit plugged straight into SpaceX’s space-based optical mesh. This is the sci-fi future arriving now: Orbital cloud computing AI servers floating in space Powered by 24/7 sunlight Connected globally at light speed via Starlink lasers The insane part: Starcloud says its satellites will eventually handle full AI inference and training workloads directly in orbit. Data won’t always need to come back to Earth to be processed. The advantages are massive: • Unlimited solar energy (no grid limits) • Zero land or water constraints • Passive radiative cooling in vacuum • Instant global relay with zero terrestrial bottlenecks • Near real-time Earth observation analysis Their first major spacecraft (Starcloud-3) is designed for 200 kilowatts in orbit a full-on space-based data center node, not just a satellite. And here’s the bigger picture: SpaceX has filed plans for up to ONE MILLION orbital data centers of its own. Read that again. We may be watching the birth of the first true space-based computing infrastructure layer for civilization. The internet already left the ground. Now AI might be next. What happens when the cloud literally moves into space? Follow for more frontier physics and future technology.
0:10

🚨 BREAKING: Starcloud just turned Starlink’s laser network into the backbone for orbital AI data centers. A company called Starcloud has ordered 50+ Starlink Mini Laser terminals to equip 25+ future satellites. Not ground stations. Not fiber cables. Direct laser-linked computing nodes in orbit plugged straight into SpaceX’s space-based optical mesh. This is the sci-fi future arriving now: Orbital cloud computing AI servers floating in space Powered by 24/7 sunlight Connected globally at light speed via Starlink lasers The insane part: Starcloud says its satellites will eventually handle full AI inference and training workloads directly in orbit. Data won’t always need to come back to Earth to be processed. The advantages are massive: • Unlimited solar energy (no grid limits) • Zero land or water constraints • Passive radiative cooling in vacuum • Instant global relay with zero terrestrial bottlenecks • Near real-time Earth observation analysis Their first major spacecraft (Starcloud-3) is designed for 200 kilowatts in orbit a full-on space-based data center node, not just a satellite. And here’s the bigger picture: SpaceX has filed plans for up to ONE MILLION orbital data centers of its own. Read that again. We may be watching the birth of the first true space-based computing infrastructure layer for civilization. The internet already left the ground. Now AI might be next. What happens when the cloud literally moves into space? Follow for more frontier physics and future technology.

TheNewPhysics

152,463 次观看 • 2 个月前

On April 26th, 2026, the Japan Meteorological Agency's Himawari-8 satellite captured a full day of Earth. Every ten minutes, for twenty-four hours, it photographed a complete hemisphere of the planet. One hundred forty-four individual photographs. No editing for content. No compositing. No CGI. No green screen. No hologram. No drawings. These are photographs, assembled into video. Himawari-8 is a geostationary weather satellite operated by Japan. It orbits at roughly twenty-two thousand miles above the equator, remaining fixed over one spot on the planet, orbiting at the same rate Earth rotates. It was launched in 2014. It takes photographs of Earth in visible light and infrared. It does this every ten minutes, every single day, year after year. These images are available to the public. Meteorologists worldwide use them for weather forecasting. News organizations use them. Scientists use them. You can access them yourself right now. What you're seeing over that twenty-four hour period is the terminator line moving -- the day-night boundary shifting as the planet's rotation carries different regions into and out of sunlight, all viewed from a fixed point in space. It is not a composite. It is not a trick. The curvature you see is not distortion. It is not perspective compression. It is the actual shape of the Earth as photographed by an independent satellite operated by a nation with no interest in perpetuating a NASA conspiracy. This is what Earth looks like from space. This is the globe holding atmosphere in place with gravity as you witness weather patterns moving across its surface. This is reality. (No fisheye lens was harmed in the making of this video.)
0:14

On April 26th, 2026, the Japan Meteorological Agency's Himawari-8 satellite captured a full day of Earth. Every ten minutes, for twenty-four hours, it photographed a complete hemisphere of the planet. One hundred forty-four individual photographs. No editing for content. No compositing. No CGI. No green screen. No hologram. No drawings. These are photographs, assembled into video. Himawari-8 is a geostationary weather satellite operated by Japan. It orbits at roughly twenty-two thousand miles above the equator, remaining fixed over one spot on the planet, orbiting at the same rate Earth rotates. It was launched in 2014. It takes photographs of Earth in visible light and infrared. It does this every ten minutes, every single day, year after year. These images are available to the public. Meteorologists worldwide use them for weather forecasting. News organizations use them. Scientists use them. You can access them yourself right now. What you're seeing over that twenty-four hour period is the terminator line moving -- the day-night boundary shifting as the planet's rotation carries different regions into and out of sunlight, all viewed from a fixed point in space. It is not a composite. It is not a trick. The curvature you see is not distortion. It is not perspective compression. It is the actual shape of the Earth as photographed by an independent satellite operated by a nation with no interest in perpetuating a NASA conspiracy. This is what Earth looks like from space. This is the globe holding atmosphere in place with gravity as you witness weather patterns moving across its surface. This is reality. (No fisheye lens was harmed in the making of this video.)

Alex Boge

12,122 次观看 • 2 个月前

SpaceX has introduced a new website for its next-generation Starlink V3 satellites, along with new information about the satellite. • 1 Tbps downlink capacity (~10× higher than Starlink V2). • 160 Gbps uplink capacity (~22× higher than Starlink V2). • 2,048 downlink beams + 2,048 uplink beams (vs. 192 downlink/144 uplink beams on V2). • Upgraded phased array antennas enable the increased user capacity and beam count. • New SpaceX-designed beamformer chips power the phased arrays. • Modem chips handle ~64× more throughput per chip, allowing more efficient simultaneous service and real-time beam allocation based on demand. • Each satellite includes 6 high-capacity 400 Gbps laser links, enabling a redundant petabit-scale laser mesh network for global routing. • Each satellite also has 4 quad-band RF backhaul antennas operating across Ka, E, V, and W bands. • RF backhaul capacity increases to 1.2 Tbps (>8× Starlink V2). • Backhaul uplink supports 60 GHz of spectrum across frequencies and polarizations (4.3× more than V2). • New solar arrays generate ~2× the power of the V2 satellite arrays. • Solar arrays are manufactured using a continuous roll of solar blanket, cut into 19-meter sections, with 4 sections stitched together per array. • Solar arrays are optimized to reduce atmospheric drag in low Earth orbit. • A Starship launch carrying V3 satellites will deploy ~20× more network capacity than a Falcon 9 launch carrying V2 satellites. • V3 technology will support future Starlink Mobile Gen 2 satellites, delivering terrestrial-like LTE speeds directly to unmodified smartphones. Website:
0:18

SpaceX has introduced a new website for its next-generation Starlink V3 satellites, along with new information about the satellite. • 1 Tbps downlink capacity (~10× higher than Starlink V2). • 160 Gbps uplink capacity (~22× higher than Starlink V2). • 2,048 downlink beams + 2,048 uplink beams (vs. 192 downlink/144 uplink beams on V2). • Upgraded phased array antennas enable the increased user capacity and beam count. • New SpaceX-designed beamformer chips power the phased arrays. • Modem chips handle ~64× more throughput per chip, allowing more efficient simultaneous service and real-time beam allocation based on demand. • Each satellite includes 6 high-capacity 400 Gbps laser links, enabling a redundant petabit-scale laser mesh network for global routing. • Each satellite also has 4 quad-band RF backhaul antennas operating across Ka, E, V, and W bands. • RF backhaul capacity increases to 1.2 Tbps (>8× Starlink V2). • Backhaul uplink supports 60 GHz of spectrum across frequencies and polarizations (4.3× more than V2). • New solar arrays generate ~2× the power of the V2 satellite arrays. • Solar arrays are manufactured using a continuous roll of solar blanket, cut into 19-meter sections, with 4 sections stitched together per array. • Solar arrays are optimized to reduce atmospheric drag in low Earth orbit. • A Starship launch carrying V3 satellites will deploy ~20× more network capacity than a Falcon 9 launch carrying V2 satellites. • V3 technology will support future Starlink Mobile Gen 2 satellites, delivering terrestrial-like LTE speeds directly to unmodified smartphones. Website:

Sawyer Merritt

241,386 次观看 • 10 天前

🚨 BIG: 🇮🇳 India to soon join the global race for SpaceX-like reusable rockets Chennai-based space startup Agnikul Cosmos has announced Mission-02, a bold plan to attempt India's first recovery of an orbital-class rocket booster by a private company. The mission aims to safely recover the booster for refurbishment and reuse, while repurposing the upper stage into a functional in-orbit platform instead of letting it become debris. This is a major step toward reusable launch vehicles that can significantly reduce costs and make satellite launches more affordable and sustainable. Agnikul is already a leader in 3D-printed rocket engines that can be produced rapidly. It is now advancing reusability technologies, backed by multiple patents from 🇮🇳 India, the 🇺🇸 US, and 🇪🇺 Europe. With support from ISRO and IN-SPACe, this progress highlights the rapid growth of India's private space sector. Alongside recent private orbital launches like Skyroot’s Vikram-1, the country is building strong self-reliance in space technology. A proud leap forward for Made in India innovation. 🇮🇳
0:15

🚨 BIG: 🇮🇳 India to soon join the global race for SpaceX-like reusable rockets Chennai-based space startup Agnikul Cosmos has announced Mission-02, a bold plan to attempt India's first recovery of an orbital-class rocket booster by a private company. The mission aims to safely recover the booster for refurbishment and reuse, while repurposing the upper stage into a functional in-orbit platform instead of letting it become debris. This is a major step toward reusable launch vehicles that can significantly reduce costs and make satellite launches more affordable and sustainable. Agnikul is already a leader in 3D-printed rocket engines that can be produced rapidly. It is now advancing reusability technologies, backed by multiple patents from 🇮🇳 India, the 🇺🇸 US, and 🇪🇺 Europe. With support from ISRO and IN-SPACe, this progress highlights the rapid growth of India's private space sector. Alongside recent private orbital launches like Skyroot’s Vikram-1, the country is building strong self-reliance in space technology. A proud leap forward for Made in India innovation. 🇮🇳

Beats in Brief 🗞️

110,200 次观看 • 9 天前

SpaceX just completed back-to-back Falcon 9 launches from both coasts in under 12 hours. Florida, then California. That was launches 20 and 21 for 2026. We're barely eight weeks into the year. Here's what the last ten days looked like. The 600th Falcon 9 flight in history. The 20th crewed Dragon mission delivering astronauts to the ISS. A booster flying its 31st mission. The second ever rocket landing in the Bahamas, resuming after a year-long environmental review. Over 50 Starlink satellites deployed across back-to-back launches. And another launch tonight. The constellation now has over 11,200 satellites launched, 9,700 in orbit, and 10 million subscribers. The FCC approved expansion to 15,000 satellites. Starlink is on pace to become one of the highest-revenue connectivity businesses on the planet. No other entity on Earth is doing anything close to this. Not governments. Not other companies. SpaceX is operating at a cadence that would have seemed impossible five years ago. This is the machine that makes everything else possible.
0:19

SpaceX just completed back-to-back Falcon 9 launches from both coasts in under 12 hours. Florida, then California. That was launches 20 and 21 for 2026. We're barely eight weeks into the year. Here's what the last ten days looked like. The 600th Falcon 9 flight in history. The 20th crewed Dragon mission delivering astronauts to the ISS. A booster flying its 31st mission. The second ever rocket landing in the Bahamas, resuming after a year-long environmental review. Over 50 Starlink satellites deployed across back-to-back launches. And another launch tonight. The constellation now has over 11,200 satellites launched, 9,700 in orbit, and 10 million subscribers. The FCC approved expansion to 15,000 satellites. Starlink is on pace to become one of the highest-revenue connectivity businesses on the planet. No other entity on Earth is doing anything close to this. Not governments. Not other companies. SpaceX is operating at a cadence that would have seemed impossible five years ago. This is the machine that makes everything else possible.

tetsuo

21,387 次观看 • 5 个月前

Google just wired DeepMind and Earth Engine directly into the biggest geospatial dataset on the planet. For two decades, millions of people used Google Earth to scale the Himalayas or zoom in on their childhood neighbourhoods. In 2026, Google is basically trying to shift the entire platform toward professional execution. They turned a massive digital twin of the world into an agentic AI engine for global infrastructure. The technical foundation is (obviously) all about data. Google integrated 20-metre and 40-metre elevation contours globally. Engineers and urban planners now have instant access to the exact topographic context required for site planning anywhere on Earth. The data catalogue updates continuously to maintain the freshest imagery possible. Collaboration used to kill geospatial projects. Teams would lose momentum through stale materials or bad handoffs. Google fixed this by building frictionless data import systems. You can now drop KML, KMZ, and GeoJSON files directly onto the global map. Entire departments can align on a single source of truth, moving from a raw question to a definitive answer instantly. The biggest upgrade is the introduction of agentic geospatial intelligence. Users can open 'Ask Google Earth' and search massive satellite and Street View databases using natural language. You type a command, and the AI handles the manual data wrangling. It identifies new site locations and analyses infrastructure before you even open a spreadsheet.
0:11

Google just wired DeepMind and Earth Engine directly into the biggest geospatial dataset on the planet. For two decades, millions of people used Google Earth to scale the Himalayas or zoom in on their childhood neighbourhoods. In 2026, Google is basically trying to shift the entire platform toward professional execution. They turned a massive digital twin of the world into an agentic AI engine for global infrastructure. The technical foundation is (obviously) all about data. Google integrated 20-metre and 40-metre elevation contours globally. Engineers and urban planners now have instant access to the exact topographic context required for site planning anywhere on Earth. The data catalogue updates continuously to maintain the freshest imagery possible. Collaboration used to kill geospatial projects. Teams would lose momentum through stale materials or bad handoffs. Google fixed this by building frictionless data import systems. You can now drop KML, KMZ, and GeoJSON files directly onto the global map. Entire departments can align on a single source of truth, moving from a raw question to a definitive answer instantly. The biggest upgrade is the introduction of agentic geospatial intelligence. Users can open 'Ask Google Earth' and search massive satellite and Street View databases using natural language. You type a command, and the AI handles the manual data wrangling. It identifies new site locations and analyses infrastructure before you even open a spreadsheet.

Yohan

45,065 次观看 • 4 个月前

⭕ Pakistan Unveils Advanced Canister Launched Abdali Missile with Extended 450km Range In a major leap forward for its tactical missile capability, Pakistan has successfully test-fired an advanced canister-based version of its Abdali short-range ballistic missile, now boasting an extended range of 450 kilometers. The new missile marks a significant evolution from its predecessor, offering enhanced mobility, survivability, and strike precision. The earlier Abdali system had a maximum range of 180 km and was mounted on a Soviet-era MAZ-587 chassis using a rail-type launch system. This older setup required longer launch preparations and was less adaptable to rapid response scenarios. In stark contrast, the upgraded Abdali missile is launched from a modern Chinese origin Taian truck and stored in a sealed canister—reflecting a contemporary shift toward quicker, more secure, and more mobile missile deployments. 🔹Key Upgrades Over Previous Version: 🔹Extended Range: The new Abdali can strike targets up to 450 km away—more than doubling the reach of the earlier model. 🔹Canister Based Launch System: Offers faster reaction time, all-weather capability, and improved safety during storage and handling. 🔹High Mobility Platform: The Taian launcher ensures better on-road and off-road performance, enabling rapid repositioning and increased survivability. 🔹Improved Accuracy and Reliability: While classified, the missile is believed to incorporate upgraded guidance systems for more precise targeting. This successful test underscores Pakistan’s continued efforts to modernize its strategic forces, signaling enhanced battlefield flexibility and deterrent capability in an evolving regional security landscape.
0:11

⭕ Pakistan Unveils Advanced Canister Launched Abdali Missile with Extended 450km Range In a major leap forward for its tactical missile capability, Pakistan has successfully test-fired an advanced canister-based version of its Abdali short-range ballistic missile, now boasting an extended range of 450 kilometers. The new missile marks a significant evolution from its predecessor, offering enhanced mobility, survivability, and strike precision. The earlier Abdali system had a maximum range of 180 km and was mounted on a Soviet-era MAZ-587 chassis using a rail-type launch system. This older setup required longer launch preparations and was less adaptable to rapid response scenarios. In stark contrast, the upgraded Abdali missile is launched from a modern Chinese origin Taian truck and stored in a sealed canister—reflecting a contemporary shift toward quicker, more secure, and more mobile missile deployments. 🔹Key Upgrades Over Previous Version: 🔹Extended Range: The new Abdali can strike targets up to 450 km away—more than doubling the reach of the earlier model. 🔹Canister Based Launch System: Offers faster reaction time, all-weather capability, and improved safety during storage and handling. 🔹High Mobility Platform: The Taian launcher ensures better on-road and off-road performance, enabling rapid repositioning and increased survivability. 🔹Improved Accuracy and Reliability: While classified, the missile is believed to incorporate upgraded guidance systems for more precise targeting. This successful test underscores Pakistan’s continued efforts to modernize its strategic forces, signaling enhanced battlefield flexibility and deterrent capability in an evolving regional security landscape.

Defence Index

18,059 次观看 • 1 年前

🇺🇸🇨🇳 ORBITAL LAUNCHES IN 2025: USA AND CHINA DOMINATE, NEW ZEALAND TIES RUSSIA WITH 17 The orbital launch race in 2025 was a clear two-horse show: the United States and China led the pack by a massive margin, while New Zealand quietly matched Russia with 17 successful launches to orbit. From 1957 to 2025, the cumulative chart tells the story of space history: the USA towers at 1,185 attempts (far ahead), China surged in recent years to 93 in 2025 alone, Russia/USSR historically strong but slowed to 17 this year, India steady at 13, and New Zealand's Rocket Lab driving its impressive 17, matching Russia's total despite the vast difference in resources. The "Other" category includes smaller players, but the gap is stark: USA and China alone accounted for the overwhelming majority of activity in 2025. This shift highlights the changing space landscape, private companies like Rocket Lab punching way above their weight, while traditional powers adjust to new realities. 2025 was a year of acceleration, and 2026 looks set to push even further. Source: SpaceNews, Charted Daily, China 'N Asia Spaceflight 🚀𝕏 🛰️
0:12

🇺🇸🇨🇳 ORBITAL LAUNCHES IN 2025: USA AND CHINA DOMINATE, NEW ZEALAND TIES RUSSIA WITH 17 The orbital launch race in 2025 was a clear two-horse show: the United States and China led the pack by a massive margin, while New Zealand quietly matched Russia with 17 successful launches to orbit. From 1957 to 2025, the cumulative chart tells the story of space history: the USA towers at 1,185 attempts (far ahead), China surged in recent years to 93 in 2025 alone, Russia/USSR historically strong but slowed to 17 this year, India steady at 13, and New Zealand's Rocket Lab driving its impressive 17, matching Russia's total despite the vast difference in resources. The "Other" category includes smaller players, but the gap is stark: USA and China alone accounted for the overwhelming majority of activity in 2025. This shift highlights the changing space landscape, private companies like Rocket Lab punching way above their weight, while traditional powers adjust to new realities. 2025 was a year of acceleration, and 2026 looks set to push even further. Source: SpaceNews, Charted Daily, China 'N Asia Spaceflight 🚀𝕏 🛰️

Mario Nawfal

26,011 次观看 • 6 个月前

This is WILD! A small startup just declared war on America's most powerful telecom companies and nobody is talking about it. For decades, AT&T, Verizon, and T-Mobile have had an iron grip on how Americans connect to the world. They built the towers, they set the prices, and you had no real choice but to pay whatever they demanded. That stranglehold ends today. US Mobile just bundled Starlink satellite home internet together with unlimited wireless service across all three major networks and they are charging under $50 a month for the whole thing. Let that land for a second. You are getting home internet beamed down from space, plus full cellular coverage on Verizon, AT&T, and T-Mobile's networks, all inside one bill that costs less than most people pay for just their phone plan alone. The big carriers have been charging $120 a month just for Starlink residential internet on its own. US Mobile is handing you that same service plus an unlimited phone plan for less than half of that price. This is not a discount carrier cutting corners. US Mobile is an MVNO, a company that leases capacity from all three major networks at wholesale rates and packages them into something the big carriers would never offer, because doing so would cannibalize their own revenue streams. Their internal network names are Warp, Darkstar, and Lightspeed. Those are Verizon, AT&T, and T-Mobile, all three, simultaneously available to one customer on one plan. Now they are adding a fourth layer from orbit. Starlink's constellation of low-earth satellites delivers home internet that has already disrupted rural broadband. Bundled with cellular, it means one plan that follows you from your living room to the middle of nowhere. The big carriers saw this threat coming. T-Mobile has been in a satellite partnership with Starlink, but that exclusivity window has expired, meaning SpaceX can now work with anyone. US Mobile was paying attention when everyone else was not. AT&T has bet $15.6 billion on a rival satellite company called AST SpaceMobile just to try to keep up. Verizon has no credible satellite answer at all and now a nine-year-old startup from New York is selling the whole package for under $50 a month.
0:13

This is WILD! A small startup just declared war on America's most powerful telecom companies and nobody is talking about it. For decades, AT&T, Verizon, and T-Mobile have had an iron grip on how Americans connect to the world. They built the towers, they set the prices, and you had no real choice but to pay whatever they demanded. That stranglehold ends today. US Mobile just bundled Starlink satellite home internet together with unlimited wireless service across all three major networks and they are charging under $50 a month for the whole thing. Let that land for a second. You are getting home internet beamed down from space, plus full cellular coverage on Verizon, AT&T, and T-Mobile's networks, all inside one bill that costs less than most people pay for just their phone plan alone. The big carriers have been charging $120 a month just for Starlink residential internet on its own. US Mobile is handing you that same service plus an unlimited phone plan for less than half of that price. This is not a discount carrier cutting corners. US Mobile is an MVNO, a company that leases capacity from all three major networks at wholesale rates and packages them into something the big carriers would never offer, because doing so would cannibalize their own revenue streams. Their internal network names are Warp, Darkstar, and Lightspeed. Those are Verizon, AT&T, and T-Mobile, all three, simultaneously available to one customer on one plan. Now they are adding a fourth layer from orbit. Starlink's constellation of low-earth satellites delivers home internet that has already disrupted rural broadband. Bundled with cellular, it means one plan that follows you from your living room to the middle of nowhere. The big carriers saw this threat coming. T-Mobile has been in a satellite partnership with Starlink, but that exclusivity window has expired, meaning SpaceX can now work with anyone. US Mobile was paying attention when everyone else was not. AT&T has bet $15.6 billion on a rival satellite company called AST SpaceMobile just to try to keep up. Verizon has no credible satellite answer at all and now a nine-year-old startup from New York is selling the whole package for under $50 a month.

Milk Road AI

89,989 次观看 • 3 个月前

AI just hit a wall that no amount of money can move. The planet itself. There is not enough power, water, or land on Earth to build the data centers the AI race now demands. So the most valuable bet in artificial intelligence is no longer a chip company or a model. It is a rocket company. The plan is to leave. In January, SpaceX filed with the FCC to launch up to 1 million solar-powered data center satellites into orbit. In February it bought xAI, the maker of Grok, folding an entire frontier AI lab into a rocket company in the largest corporate merger ever recorded. On June 8 it unveiled the AI1, a compute satellite with a 70-meter wingspan, wider than a Boeing 747, powered by the sun, cooled by the vacuum of space, and wired to the ground through Starlink. Four days later it went public in the largest IPO in history, near 1.77 trillion dollars, touched 2.1 trillion on its first day, raised close to 86 billion, and made one man the first trillionaire alive. Now read the direction of that merger, because it is the whole story. A rocket company bought the AI lab. Not the reverse. For three years everyone assumed the constraint on AI was chips, or data, or talent. It is none of them anymore. It is energy and heat and dirt. The head of Anthropic said his company grew faster than the exponential, 80 times in a single year, and that is exactly why it ran out of compute. The answer was not to build more data centers in Virginia. It was to leave the atmosphere, where the sun never sets and a solar panel does five times the work. The moat in artificial intelligence is no longer the model. It is the launch. And the first rent is already being paid. A rival lab, Anthropic, is reported to be sending roughly 1.25 billion dollars a month to Musk for compute. Google near 920 million. If intelligence moves to orbit, the company that owns the only affordable road there becomes the landlord of the next layer of the internet, the way one bookstore became the landlord of the cloud. The merger is the proof of concept. The IPO is the war chest. Those monthly checks are the lease. Here is the part the price tag does not want you to read. Close to a trillion dollars of that valuation rests on orbital data centers that do not yet exist, and on a chip factory, Terafab, that SpaceX's own public filing calls a general framework with no binding deal, one that may not achieve commercial viability. Musk said it on camera. This is not a promise. The largest IPO ever written is priced on a future the filing itself cannot verify. The other side is just as real. Compute in orbit costs about four times what it costs on the ground today, and the curve may not cross for fifteen years. The machines that print the chips are backordered for years. Shedding heat in a vacuum at this scale has never been done. Musk's timelines have a long history of meaning later. And Bezos is racing the same orbit with a constellation of 51,600 satellites of his own. But strip it all away and the trade underneath is one sentence. Earth has run out of room for intelligence, and whoever owns the road off the planet owns whatever gets built next. Call it the most expensive science fiction ever sold, or the first time the map of the internet pointed up.
0:10

AI just hit a wall that no amount of money can move. The planet itself. There is not enough power, water, or land on Earth to build the data centers the AI race now demands. So the most valuable bet in artificial intelligence is no longer a chip company or a model. It is a rocket company. The plan is to leave. In January, SpaceX filed with the FCC to launch up to 1 million solar-powered data center satellites into orbit. In February it bought xAI, the maker of Grok, folding an entire frontier AI lab into a rocket company in the largest corporate merger ever recorded. On June 8 it unveiled the AI1, a compute satellite with a 70-meter wingspan, wider than a Boeing 747, powered by the sun, cooled by the vacuum of space, and wired to the ground through Starlink. Four days later it went public in the largest IPO in history, near 1.77 trillion dollars, touched 2.1 trillion on its first day, raised close to 86 billion, and made one man the first trillionaire alive. Now read the direction of that merger, because it is the whole story. A rocket company bought the AI lab. Not the reverse. For three years everyone assumed the constraint on AI was chips, or data, or talent. It is none of them anymore. It is energy and heat and dirt. The head of Anthropic said his company grew faster than the exponential, 80 times in a single year, and that is exactly why it ran out of compute. The answer was not to build more data centers in Virginia. It was to leave the atmosphere, where the sun never sets and a solar panel does five times the work. The moat in artificial intelligence is no longer the model. It is the launch. And the first rent is already being paid. A rival lab, Anthropic, is reported to be sending roughly 1.25 billion dollars a month to Musk for compute. Google near 920 million. If intelligence moves to orbit, the company that owns the only affordable road there becomes the landlord of the next layer of the internet, the way one bookstore became the landlord of the cloud. The merger is the proof of concept. The IPO is the war chest. Those monthly checks are the lease. Here is the part the price tag does not want you to read. Close to a trillion dollars of that valuation rests on orbital data centers that do not yet exist, and on a chip factory, Terafab, that SpaceX's own public filing calls a general framework with no binding deal, one that may not achieve commercial viability. Musk said it on camera. This is not a promise. The largest IPO ever written is priced on a future the filing itself cannot verify. The other side is just as real. Compute in orbit costs about four times what it costs on the ground today, and the curve may not cross for fifteen years. The machines that print the chips are backordered for years. Shedding heat in a vacuum at this scale has never been done. Musk's timelines have a long history of meaning later. And Bezos is racing the same orbit with a constellation of 51,600 satellites of his own. But strip it all away and the trade underneath is one sentence. Earth has run out of room for intelligence, and whoever owns the road off the planet owns whatever gets built next. Call it the most expensive science fiction ever sold, or the first time the map of the internet pointed up.

Shanaka Anslem Perera ⚡

54,245 次观看 • 1 个月前

NEW: Detailed assessment of the Israeli strike on Taleghan 2, a site "used by the Iranian regime to advance nuclear weapons capabilities," according to the IDF. We detail the damage done to the newly constructed, bunkered facility, and nearby structures. Below is a composite image created by transparently overlaying the post-strike satellite photograph taken by Vantor on 11 March 2026 onto earlier pre-strike imagery. The overlays are designed to demonstrate the high precision of the bombing campaign, accurately targeting the facility despite its recent reinforcement — including full concrete encasement and a thick overlying layer of earth. They show that the bunker buster bombs were not only precisely on target along the length of the main suspected high explosive test chamber hall, but it is clear that the bombs successfully penetrated the encasing concrete sarcophagus into the interior given the evidence that the main blast(s) traveled outward from the interior to cause significant collateral damage in knocking down a protective defensive wall just outside the northern entrance. A small building southeast of the facility appears to have been partially destroyed by the concussion from the main bunker buster blasts. Construction of the new facility only started in May 2025, following Israel's October 2024 strike on the previous facility. During construction, satellite imagery showed the front cylindrical portion of what may have been a high explosive containment vessel (see below). We also provide background on the broader Taleghan site, which includes a location known as Taleghan 1 rooted in Iran's Amad Plan and which we have been monitoring for almost 15 years.
0:11

NEW: Detailed assessment of the Israeli strike on Taleghan 2, a site "used by the Iranian regime to advance nuclear weapons capabilities," according to the IDF. We detail the damage done to the newly constructed, bunkered facility, and nearby structures. Below is a composite image created by transparently overlaying the post-strike satellite photograph taken by Vantor on 11 March 2026 onto earlier pre-strike imagery. The overlays are designed to demonstrate the high precision of the bombing campaign, accurately targeting the facility despite its recent reinforcement — including full concrete encasement and a thick overlying layer of earth. They show that the bunker buster bombs were not only precisely on target along the length of the main suspected high explosive test chamber hall, but it is clear that the bombs successfully penetrated the encasing concrete sarcophagus into the interior given the evidence that the main blast(s) traveled outward from the interior to cause significant collateral damage in knocking down a protective defensive wall just outside the northern entrance. A small building southeast of the facility appears to have been partially destroyed by the concussion from the main bunker buster blasts. Construction of the new facility only started in May 2025, following Israel's October 2024 strike on the previous facility. During construction, satellite imagery showed the front cylindrical portion of what may have been a high explosive containment vessel (see below). We also provide background on the broader Taleghan site, which includes a location known as Taleghan 1 rooted in Iran's Amad Plan and which we have been monitoring for almost 15 years.

Inst for Science

13,832 次观看 • 4 个月前

🇨🇳🇮🇱🇮🇷 China didn’t pick a side in the Iran war, it picked both. The magnets inside Israel’s Arrow interceptors are Chinese-processed rare earths, while the navigation system guiding Iran’s Fattah-2 missiles is also from China. According to the Australian Strategic Policy Institute, nearly every major U.S-aligned interceptor system, Patriot, THAAD, Arrow, David’s Sling, relies on Chinese rare earth processing for the magnets that make guidance, steering, and targeting possible. No magnets, no interception, and right now, there is no backup plan. China controls roughly 90% of the rare earth supply chain. The U.S imports 100% of its finished magnets. To match that with domestic production will take a decade, minimum. Iran’s arsenal, Fattah-2, Emad, Kheibar Shekan, even Shahed drones, leans heavily on Chinese inputs: satellite navigation via BeiDou, propellants, electronics, and components. Add Russian and Chinese satellite imagery, and you get targeting precision layered on top of supply dependence. Why this matters: Both sides are burning through their stockpiles. Israel has already expended a significant share of its Arrow and David’s Sling interceptors. Iran is launching barrages that are equally finite, especially as production sites get hit with airstrikes. And every launch, defensive or offensive, tightens their dependency on China.
0:19

🇨🇳🇮🇱🇮🇷 China didn’t pick a side in the Iran war, it picked both. The magnets inside Israel’s Arrow interceptors are Chinese-processed rare earths, while the navigation system guiding Iran’s Fattah-2 missiles is also from China. According to the Australian Strategic Policy Institute, nearly every major U.S-aligned interceptor system, Patriot, THAAD, Arrow, David’s Sling, relies on Chinese rare earth processing for the magnets that make guidance, steering, and targeting possible. No magnets, no interception, and right now, there is no backup plan. China controls roughly 90% of the rare earth supply chain. The U.S imports 100% of its finished magnets. To match that with domestic production will take a decade, minimum. Iran’s arsenal, Fattah-2, Emad, Kheibar Shekan, even Shahed drones, leans heavily on Chinese inputs: satellite navigation via BeiDou, propellants, electronics, and components. Add Russian and Chinese satellite imagery, and you get targeting precision layered on top of supply dependence. Why this matters: Both sides are burning through their stockpiles. Israel has already expended a significant share of its Arrow and David’s Sling interceptors. Iran is launching barrages that are equally finite, especially as production sites get hit with airstrikes. And every launch, defensive or offensive, tightens their dependency on China.

Mario Nawfal

465,189 次观看 • 3 个月前

When a spacecraft leaves Earth, it doesn’t just fire its engines and head straight to its destination. In many missions, especially those going beyond low Earth orbit, there’s a more subtle and elegant strategy at play, one that uses gravity itself as part of the navigation system. This is often called a gravity assist, or a slingshot maneuver. But in the case of missions like #Artemis II, what’s being used is a closely related idea known as a free-return trajectory. At first glance, it might sound simple: the spacecraft goes to the Moon, loops around it, and comes back. But the physics behind it is anything but simple. Instead of relying on continuous propulsion, the spacecraft follows a carefully calculated path through the gravitational field of the Earth–Moon system. It is launched with just the right speed and direction so that, as it approaches the Moon, the Moon’s gravity bends its trajectory. The spacecraft is effectively flung around the Moon, redirected onto a path that naturally brings it back toward Earth. No major engine burn is needed for the return. Small trajectory corrections may still be required, but gravity does the heavy lifting. That’s the key. This kind of trajectory is not just efficient, it’s also safe. If something goes wrong with the spacecraft’s engines or onboard systems, gravity itself ensures the return. It’s an inherent backup plan, built into the trajectory from the very beginning. The same fundamental idea appears in gravity assists used across the Solar System. When a spacecraft flies past a planet, it can gain or lose speed by exchanging momentum with that planet. From the spacecraft’s point of view, it’s as if it has been accelerated without using fuel. In reality, it has borrowed a tiny amount of orbital energy from the planet itself. That’s how missions like Voyager reached the outer planets, and how probes continue to explore regions far beyond what their onboard fuel alone would allow. But there’s an important distinction. An interplanetary gravity assist is typically used to change speed and direction, often increasing the spacecraft’s energy. A free-return trajectory, like the one used in Artemis II, is designed for something more specific: a path that naturally loops back to Earth without requiring additional propulsion. It’s less about gaining energy, and more about shaping a trajectory that guarantees a return. To understand why this works, it helps to stop thinking in straight lines. In space, motion follows curves defined by gravity. The spacecraft is constantly falling, first toward Earth, then toward the Moon, and then back toward Earth again. What looks like a loop is really a continuous free fall through a changing gravitational landscape. This way of navigating space reveals something deeper. We tend to think of engines as the drivers of motion, but once a spacecraft is on its way, gravity does most of the work. The art of spaceflight is not just about thrust. It’s about knowing when not to use it. #GoodLuck #Artemis NASA Artemis
0:11

When a spacecraft leaves Earth, it doesn’t just fire its engines and head straight to its destination. In many missions, especially those going beyond low Earth orbit, there’s a more subtle and elegant strategy at play, one that uses gravity itself as part of the navigation system. This is often called a gravity assist, or a slingshot maneuver. But in the case of missions like #Artemis II, what’s being used is a closely related idea known as a free-return trajectory. At first glance, it might sound simple: the spacecraft goes to the Moon, loops around it, and comes back. But the physics behind it is anything but simple. Instead of relying on continuous propulsion, the spacecraft follows a carefully calculated path through the gravitational field of the Earth–Moon system. It is launched with just the right speed and direction so that, as it approaches the Moon, the Moon’s gravity bends its trajectory. The spacecraft is effectively flung around the Moon, redirected onto a path that naturally brings it back toward Earth. No major engine burn is needed for the return. Small trajectory corrections may still be required, but gravity does the heavy lifting. That’s the key. This kind of trajectory is not just efficient, it’s also safe. If something goes wrong with the spacecraft’s engines or onboard systems, gravity itself ensures the return. It’s an inherent backup plan, built into the trajectory from the very beginning. The same fundamental idea appears in gravity assists used across the Solar System. When a spacecraft flies past a planet, it can gain or lose speed by exchanging momentum with that planet. From the spacecraft’s point of view, it’s as if it has been accelerated without using fuel. In reality, it has borrowed a tiny amount of orbital energy from the planet itself. That’s how missions like Voyager reached the outer planets, and how probes continue to explore regions far beyond what their onboard fuel alone would allow. But there’s an important distinction. An interplanetary gravity assist is typically used to change speed and direction, often increasing the spacecraft’s energy. A free-return trajectory, like the one used in Artemis II, is designed for something more specific: a path that naturally loops back to Earth without requiring additional propulsion. It’s less about gaining energy, and more about shaping a trajectory that guarantees a return. To understand why this works, it helps to stop thinking in straight lines. In space, motion follows curves defined by gravity. The spacecraft is constantly falling, first toward Earth, then toward the Moon, and then back toward Earth again. What looks like a loop is really a continuous free fall through a changing gravitational landscape. This way of navigating space reveals something deeper. We tend to think of engines as the drivers of motion, but once a spacecraft is on its way, gravity does most of the work. The art of spaceflight is not just about thrust. It’s about knowing when not to use it. #GoodLuck #Artemis NASA Artemis

Erika 

234,886 次观看 • 3 个月前