Oxygen (O2) is necessary to the respiration and the survival of astronauts in the near vacuum of space. Astronauts does not have the breathable atmosphere on Earth in space. The space suit protects them from the lethal cold and vacuum of space by keeping him in temperature controlled and pressurized environment.
just enough for them to survive
Sandy
She wear's it because mammals can't breathe underwater.
He is an astronaut
Rocket man
For Multiple reasons. 1) There is no air, therefore the astronaut must wear the suit, or rather the suit's helmet to breathe. 2) It protects him from physical damage when handling volatile or dangerous substances/ objects.
Between 13 and 17 million
An astronaut.
It's called a space suit
no
About 160 pounds.(Less than that if the 27 pounds on the moon included his space suit.)
fabric
James Miller
An astronaut suit.
Sandy
I can't imagine it would be.
The astronaut's space helmets allows them to breathe in space! It is connected to an air supply.An astronaut's space suit keeps him from harm from outer space objects!They live in an airtight environment (suit, ship, or station).
The pressure in an astronaut's suit helps venous return; in other words, it helps blood get from body tissues back to the heart.