Yes weight changes due to gravity and mass is constant in terms of gravity. There is less gravity in space than the earth so they would weigh less but their mass would be the same.
They have less gravity pulling on them, so yes. Unless they have artificial gravity creators in or on the space ship that I don't know about.
Yes
Yes
they do-there is no gravity
As there is less or no gravity in space astronauts take closed food packets with them to the space . These food packets provide vitamins and minerals for astronauts in space to live .
As there is less space , and three men share the craft the amount of space will be less.
They don't even weight a pound in space because there is no gravity pull in outerspace
There are several problems met by astronauts in outer space. These problems include oxygen, radiation, gravity, weight, temperature, and food.
of course , but it would not be the same weight as on earth
They sleep up to .5 to 2.5 hours less then they do on Earth then in space
Astronauts are people who fly in space
trained space astronauts
Astronauts require less sleep than normal; Theoretically because the astronauts always have to be alert in a dangerous setting like space.