It’s also for removing the suit systems heat, and heat from sunlight. As much as we love to say space is cold, the problem things in space have is the exact opposite. Without air for the convection or conduction of heat things in space, be they satellites, a space station, or a human in an EVA suit, have a very hard time expelling heat. The International Space Station has enormous radiators on the dark side of it’s solar panels for this very reason, getting rid of heat is hard when you can’t just blow air over a heat sink.
Also, for what it’s worth, the average energy of what few particles there are in the vacuum of space tends to be pretty high, but they’re so dispersed that it’s entirely negligible.
It’s also for removing the suit systems heat, and heat from sunlight. As much as we love to say space is cold, the problem things in space have is the exact opposite. Without air for the convection or conduction of heat things in space, be they satellites, a space station, or a human in an EVA suit, have a very hard time expelling heat. The International Space Station has enormous radiators on the dark side of it’s solar panels for this very reason, getting rid of heat is hard when you can’t just blow air over a heat sink.
Also, for what it’s worth, the average energy of what few particles there are in the vacuum of space tends to be pretty high, but they’re so dispersed that it’s entirely negligible.