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A few months after my tether solar panel breakthrough, I applied the same idea to a problem that had bedeviled me for years. How to point solar arrays at the Sun on a spacecraft doing a passive thermal control roll?

Kirk Sorensen

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20,437 次观看 • 10 个月前 •via X (Twitter)

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Earlier in this mission, Spx-33 did a checkout of its reboost capability. In preparation for that maneuver, the solar arrays on the International Space Station had to park in a safe position. Here’s a time lapse demonstrating the solar arrays autotracking the position of the sun then feathering to a safe position. Notice in this sped-up video how the solar arrays can rotate about two different axes, one controlled by the SARJ (solar alpha rotary joint) and the other by the BGA (beta gimbal assembly). This allows fine tuning the position of the arrays to optimize sunlight conversion to electricity.

Earlier in this mission, Spx-33 did a checkout of its reboost capability. In preparation for that maneuver, the solar arrays on the International Space Station had to park in a safe position. Here’s a time lapse demonstrating the solar arrays autotracking the position of the sun then feathering to a safe position. Notice in this sped-up video how the solar arrays can rotate about two different axes, one controlled by the SARJ (solar alpha rotary joint) and the other by the BGA (beta gimbal assembly). This allows fine tuning the position of the arrays to optimize sunlight conversion to electricity.

Jonny Kim

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Here’s me cleaning the solar panels on my roof a few Saturdays ago. Yup, solar energy has been a passion for me for many years. I live it. Ask me all the questions you want about your solar interests on my socials. #Solar #Renewables #OffGridSolutions

Here’s me cleaning the solar panels on my roof a few Saturdays ago. Yup, solar energy has been a passion for me for many years. I live it. Ask me all the questions you want about your solar interests on my socials. #Solar #Renewables #OffGridSolutions

Israel Laryea

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A real power move! ⚡️ Here's a look at engineers and technicians at NASA's Kennedy Space Center deploying the first of two massive solar arrays that will provide electricity for our spacecraft at Jupiter – which is more than five times as far from the Sun as Earth.

A real power move! ⚡️ Here's a look at engineers and technicians at NASA's Kennedy Space Center deploying the first of two massive solar arrays that will provide electricity for our spacecraft at Jupiter – which is more than five times as far from the Sun as Earth.

ARCHIVED - NASA Europa Clipper

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.Beyond Reach Labs (YC W26) builds deployable solar arrays that grow from the size of a dining table to a football field in orbit, unlocking massive power for next-gen spacecraft. Congrats on the launch, Mitchell Fogelson and Pele!

.Beyond Reach Labs (YC W26) builds deployable solar arrays that grow from the size of a dining table to a football field in orbit, unlocking massive power for next-gen spacecraft. Congrats on the launch, Mitchell Fogelson and Pele!

Y Combinator

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Start 2026 on a radiant note with this breathtaking video of the Sun: our Solar Orbiter spacecraft captured a stunning plasma flare dancing above the solar surface. 🔥 🔗

Start 2026 on a radiant note with this breathtaking video of the Sun: our Solar Orbiter spacecraft captured a stunning plasma flare dancing above the solar surface. 🔥 🔗

European Space Agency

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Elon at Davos: "SpaceX, within a few years, will be launching solar-powered AI satellites." Last week, early SpaceX engineer Scott Nolan explained the logic behind Elon's solar AI vision: "Solar obviously takes a lot more area on the ground, but there is plenty of area for that in general. The missing piece was really storage." "Solar is inherently cyclical. To smooth it out, you need very cheap grid-scale or at least gigawatt-scale storage. Batteries or other forms. We haven't had that yet at a cost point that I think can compete with nuclear. That could change, and that would be great. But for now, in the foreseeable future on Earth, it's nuclear." "Now, when we talk about in-orbit, it's a whole different ballgame. If you have very cheap launch capacity, if your GPUs don't weigh very much, which they don't, and they're high-value, you could potentially put all of that in orbit, have your solar panel completely in sun-sync, and solve the battery issue. The one remaining piece is — you've got a lot of incident solar energy, and you're going to run those GPUs, how do you cool them? I think that's the piece that people are going to be working on for the next few years."

Elon at Davos: "SpaceX, within a few years, will be launching solar-powered AI satellites." Last week, early SpaceX engineer Scott Nolan explained the logic behind Elon's solar AI vision: "Solar obviously takes a lot more area on the ground, but there is plenty of area for that in general. The missing piece was really storage." "Solar is inherently cyclical. To smooth it out, you need very cheap grid-scale or at least gigawatt-scale storage. Batteries or other forms. We haven't had that yet at a cost point that I think can compete with nuclear. That could change, and that would be great. But for now, in the foreseeable future on Earth, it's nuclear." "Now, when we talk about in-orbit, it's a whole different ballgame. If you have very cheap launch capacity, if your GPUs don't weigh very much, which they don't, and they're high-value, you could potentially put all of that in orbit, have your solar panel completely in sun-sync, and solve the battery issue. The one remaining piece is — you've got a lot of incident solar energy, and you're going to run those GPUs, how do you cool them? I think that's the piece that people are going to be working on for the next few years."

TBPN

21,239 次观看 • 5 个月前

A #SolarOrbiter success story! A key mission goal was to link the solar wind detected around the spacecraft back to its source regions on the Sun. A new paper, using data taken during our first close approach to the Sun, confirms that it's possible. More👉

A #SolarOrbiter success story! A key mission goal was to link the solar wind detected around the spacecraft back to its source regions on the Sun. A new paper, using data taken during our first close approach to the Sun, confirms that it's possible. More👉

ESA's Solar Orbiter

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A solar powered solar-panel cleaner, cleaning solar panels. Welcome to China.

A solar powered solar-panel cleaner, cleaning solar panels. Welcome to China.

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After launch comes spacecraft commissioning 🛰️🛰️ Our operators have spent recent days stabilizing spacecraft attitudes, deploying solar arrays, checking guidance and navigation systems, and powering up all flight computers and antennas on Blue and Gold as they begin their journey to Mars for the ESCAPADE mission. Take a look at what goes on behind the scenes in mission control.

After launch comes spacecraft commissioning 🛰️🛰️ Our operators have spent recent days stabilizing spacecraft attitudes, deploying solar arrays, checking guidance and navigation systems, and powering up all flight computers and antennas on Blue and Gold as they begin their journey to Mars for the ESCAPADE mission. Take a look at what goes on behind the scenes in mission control.

Rocket Lab

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8 years ago, a few months in China, I had a silly idea to recite one of the nursery rhymes we were learning over a beat. That blew my confidence up and my love for this job grew so much. Apparently this video went viral in China at some point.

8 years ago, a few months in China, I had a silly idea to recite one of the nursery rhymes we were learning over a beat. That blew my confidence up and my love for this job grew so much. Apparently this video went viral in China at some point.

First Of His Name

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Redwire have successfully completed the first deployment test for one of its Roll-Out Solar Arrays (ROSA), which will provide power to the NASA-led Gateway and will be the largest solar arrays ever deployed by humanity in space.

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New Scientist

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Gigascale Founder and former Meta CTO Mike Schroepfer says new solar startups will go after installation costs rather than compete with China on solar panels. "If you look at a solar farm, you lay down all this steel and put up all this framing for the panels. When that panel was the most expensive thing on the field, then [startups producing solar panels] made sense." "But solar panels are now the cheapest thing in the field. All the rest of the stuff costs more than the panel." "I think what we're going to see is startups saying, 'Let's rethink how we actually deploy solar from a form-factor and automation perspective. And just go after installation costs.'"

Gigascale Founder and former Meta CTO Mike Schroepfer says new solar startups will go after installation costs rather than compete with China on solar panels. "If you look at a solar farm, you lay down all this steel and put up all this framing for the panels. When that panel was the most expensive thing on the field, then [startups producing solar panels] made sense." "But solar panels are now the cheapest thing in the field. All the rest of the stuff costs more than the panel." "I think what we're going to see is startups saying, 'Let's rethink how we actually deploy solar from a form-factor and automation perspective. And just go after installation costs.'"

TBPN

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We've never seen this part of the Sun before! ☀️ 👀 The European Space Agency /NASA Solar Orbiter spacecraft has revealed the first-ever images of the Sun’s polar regions, previously hidden parts of the Sun newly visible thanks to the spacecraft’s uniquely “tilted” orbit. The new images showcase a surprisingly splotchy mix of magnetic fields at the Sun’s poles. It’s a sign that our Sun is in its most chaotic phase, right in the middle of “flipping” its entire magnetic field upside down. 🔃 With its new vantage point, Solar Orbiter will be the first spacecraft to watch this flipping process happen at the Sun’s poles. The data will give new insight into the forces driving solar eruptions that affect Earth. NASA’s Illuminate: Out-of-this-world images shining light on our Sun and solar system. #NASAsIlluminate #NASA #sun #space #science

We've never seen this part of the Sun before! ☀️ 👀 The European Space Agency /NASA Solar Orbiter spacecraft has revealed the first-ever images of the Sun’s polar regions, previously hidden parts of the Sun newly visible thanks to the spacecraft’s uniquely “tilted” orbit. The new images showcase a surprisingly splotchy mix of magnetic fields at the Sun’s poles. It’s a sign that our Sun is in its most chaotic phase, right in the middle of “flipping” its entire magnetic field upside down. 🔃 With its new vantage point, Solar Orbiter will be the first spacecraft to watch this flipping process happen at the Sun’s poles. The data will give new insight into the forces driving solar eruptions that affect Earth. NASA’s Illuminate: Out-of-this-world images shining light on our Sun and solar system. #NASAsIlluminate #NASA #sun #space #science

ARCHIVED - NASA Sun & Space

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A solar flare and coronal mass ejection captured by the Solar Dynamics Observatory spacecraft.

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