this post was submitted on 06 Jul 2026
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Space

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'Acceleration without fuel:' Revolutionary superconducting thruster harnesses Earth's magnetic field in 1st orbital test (www.space.com)
submitted 3 weeks ago by Delta_V@lemmy.world to c/space@mander.xyz
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..."Once you have super-conducting technology available in space, you can then create very strong magnetic fields and you can use them for various use cases," he said. "You can accelerate things in space very fast or change the trajectory of a satellite completely without fuel."...

"When we go to space, we get hurt by radiation, and these superconducting magnets can create umbrellas of magnetic fields around the spacecraft to protect the interior," said Arshavsky. "So we can shield people in space from that radiation."...

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[–] applebusch@lemmy.blahaj.zone 1 points 3 weeks ago

wtf are you talking about... linear and angular momentum are always conserved. the only way to get thrust is to expend mass. a magnetorquer exchanges angular momentum with the earth via its magnetic field. it cant be used to exchange linear momentum.