正在加载视频...

视频加载失败

Flashlights and lasers in space? 💥 During a solar flyby, NASA’s Parker Solar Probe made a surprising discovery about high-speed particles accelerated by explosive events on the Sun: Protons spread out like a flashlight beam 🔦 Heavy ions shoot out straight like a laser ⚡ This unexpected data is...

68,444 次观看 • 5 个月前 •via X (Twitter)

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

🚨 PARKER SOLAR PROBE JUST FOUND HIGH-ENERGY PARTICLES NEAR THE SUN THAT NO MODEL PREDICTED AND WE DON’T KNOW HOW THEY GOT SO ENERGETIC. During its close passes through the solar corona, NASA’s Parker Solar Probe detected protons accelerated to energies around 400 keV roughly 1,000 times higher than current models of magnetic reconnection at the heliospheric current sheet could explain. The particles appear to be trapped and energized inside magnetic islands that form and merge during reconnection events at the current sheet (the vast surface where the Sun’s magnetic field flips polarity). This mechanism was not expected to produce such high energies so close to the Sun. Why this matters: • It reveals a previously unknown or underestimated source of energetic particles right in the solar corona • Existing models of solar energetic particles have focused mainly on shocks from coronal mass ejections — this suggests reconnection can also be a powerful accelerator • The same process may be contributing more to coronal heating than previously calculated • It has implications for space weather forecasting, since these particles can affect spacecraft and astronauts The deeper implication: Parker is showing us that the physics of the near-Sun environment is more energetic and complex than our models assumed. Magnetic reconnection long known as an important process appears capable of accelerating particles to surprisingly high energies through the merging of magnetic islands. This doesn’t just tweak our understanding of the Sun; it may force revisions in how we model particle acceleration across many astrophysical environments. We’re still in the early stages of understanding what Parker is revealing, but it’s already clear that the corona is more violent and dynamic than we thought. How do you think this discovery might change our models of space weather or solar physics in the coming years? Follow for more updates from Parker Solar Probe and the evolving picture of our Sun.

TheNewPhysics

16,192 次观看 • 3 个月前

🚨 CHINA IS RACING TO BUILD A SPACE SOLAR POWER PLANT THAT COULD BEAM ELECTRICITY FROM ORBIT TO EARTH. Scientists at Xidian University have successfully tested a ground-based system that can wirelessly transmit kilowatt-level power over 100 meters using microwaves. Their ultimate goal is far more ambitious: placing large solar power stations in geostationary orbit (36,000 km up), where sunlight is available 24/7 with no weather or atmosphere blocking it. The project, called Zhuri (“chasing the sun”), uses mirrors to concentrate sunlight onto solar panels, converts the electricity into microwaves, and beams it down to a receiving antenna (rectenna) on Earth. Why this matters: • In space, solar energy is up to 6 times more efficient than on Earth because there’s no night, clouds, or atmospheric filtering • A single large space solar station could theoretically generate gigawatts of continuous clean power enough for millions of homes • The team has already proven the system can beam power to multiple moving targets at once • China is now among the world leaders in this technology, alongside the US and Japan The deeper implication: Space-based solar power has been a dream for decades because it could provide truly baseload renewable energy. While the technical and financial challenges are enormous (building massive structures in orbit, precise microwave beaming, and safety), steady progress like this brings the concept closer to reality. If successful, it could fundamentally change how humanity generates and distributes energy moving power collection off the planet entirely. Near-term applications could include wirelessly charging satellites or powering future lunar bases. Do you think space-based solar power will become a major energy source in the coming decades, or will it stay too expensive and complex? Follow for more frontier energy and space technology developments.

TheNewPhysics

15,361 次观看 • 3 个月前

🚨 NASA’S PARKER SOLAR PROBE IS NOW FLYING THROUGH THE SUN. Not orbiting near it. Not observing from a safe distance. It’s actually moving through the Sun’s outer atmosphere the corona at 430,000 mph. Fast enough to cross the entire continental United States in about 20 seconds. Yet the front of the spacecraft is glowing at 2,500°F (hotter than molten lava) while the delicate instruments behind its heat shield remain near room temperature. Why this matters: For decades one of the biggest unsolved mysteries in physics has been the Sun’s corona. It reaches temperatures of millions of degrees while the visible surface below it is far cooler. That’s like standing farther from a campfire and suddenly feeling hotter. Parker is now flying directly through the region where that mystery is born. It’s already revealing: • Strange magnetic “switchbacks” • Unexpected solar wind structures • Jagged boundaries where the Sun’s atmosphere escapes into space • Plasma behavior never seen before in human history The deeper implication is staggering: Everything on Earth depends on the Sun our weather, climate, satellites, power grids, even life itself. Yet we’ve spent most of human history studying it from 93 million miles away. For the first time… we’re touching the atmosphere of a star. What do you think Parker will discover next something expected… or something that forces us to rewrite solar physics entirely? Follow for more frontier physics and cosmic discoveries.

TheNewPhysics

24,584 次观看 • 3 个月前