Astronauts usually move their bodies with their hands or equipment in weightlessness, not their feet. It is difficult to walk in space. There is no gravity in space and people are floating. Astronauts generally rely on thrust to move themselves in the opposite direction. How do astronauts walk in space? There is no clear boundary between the earth and space. The void area outside the earth's atmosphere is space.
Space is an extremely cold environment, with an average temperature of minus 270.3 ℃.
Gravity in space is only 1% to 1 / 100000 g, and people are weightless in space. （YuHangYuanZaiTaiKongZenMeZouLu）