Scientists may have spotted a long-sought triplet superconductor — a material that can transmit both electricity and electron spin with zero resistance. That ability could dramatically stabilize quantum computers while slashing their energy use. Early experiments suggest the alloy NbRe behaves unlike any conventional superconductor. If verified, it could become a cornerstone of next-generation quantum and spintronic technology.
essentially a conductor for “spin currents”


Well, if we had these aboard the International Space Station or a spaceship, we could simply choose to crank the heat down in the computer room. Might actually save energy in that case.
Dream big!
It is very hard to cool things down in space
Depends how far you are from the Sun
No, in general
There only way to expell heat is via radiation, which is very slow
https://youtu.be/-w6G7VEwNq0