Human skin makes an excellent seal against the vacuum of space. Beyond that there are a lot of things to take into consideration. But if only the hand is exposed, then it will swell slightly as the internal body pressure press out. As heat loss on earth is due to conduction, convection and radiation In a vacuum there is no water or air molecules, so heat loss is through radiation Unless you touch a cold object then conduction heat loss would occur. Direct exposure sunlight would warm it up quite a bit. NASA has compiled quite list based on industrial accidents on the extents of a vacuum environment on the human body.
the anvil will fall down
To an astronaut in a space craft, the sky appears to be black.
Around 35 years ago or something like that
none of them
An Astronaut.
the anvil will fall down
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.
If an astronaut were to take off their helmet in space, they would be exposed to the vacuum of space which would lead to decompression, causing rapid loss of consciousness within a few seconds. Due to the lack of oxygen, the astronaut would ultimately suffocate and die.
He/she would suffocate and/or freeze.
She was an astronaut and went into space 2 times. She was also the first women to go into space.
The Canadian astronaut David Saint-Jacques has never been in space... ...but he has been under water for 2 seconds!
An astronaut is a person who travels into space.
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.
If an astronaut falls ill in space, they would typically be treated using the medical equipment available onboard the spacecraft. The astronaut would also be in regular communication with medical staff on Earth who can provide guidance for treatment. In serious cases, the astronaut may need to be evacuated back to Earth for more advanced medical care.
Astronaut Yuri Gagarian