The environment of space is lethal without appropriate protection: the greatest threat in the vacuum of space derives from the lack of oxygen and pressure, although temperature and radiation also pose risks. The effects of space exposure can result in ebullism, hypoxia, hypocapnia, and decompression sickness.
problems of astronaut encounter in space explorations
If an astronaut took off his helmet in space, his body would explode from the lack of pressure in space before other problems would become noticeable.
An astronaut.
an astronaut is someone that goes up in to space
Alan sheperd was the first astronaut in space.
To an astronaut in a space craft, the sky appears to be black.
Astronaut Yuri Gagarian
Yep, if an astronaut has mass, they will have inertia.
A person who flies in space is called an astronaut.
An astronaut is a commander, pilot, or a crew member of a spacecraft. In Russia an astronaut is known as a cosmonaut.
Space-based exploration and study is the primary role of an astronaut. A space traveler who is not primarily an astronaut is called a mission specialist.
in space