People in space with no suit?!?

Question

This would never happen but say an astronaut went out of space with no suit? I kind of want in detail because I already have an idea of what would happen.

Answer 1

It turns out that nothing very violent happens at all. If the astronaut avoids to hold his or her breath, he or she will be conscious for about ten seconds and then live for another two minutes until the heart stops. People have actually survived these conditions a couple of times... it is not pleasant but there seem to be no longterm effects from exposure to vacuum. Sorry to disappoint everyone, but the closest one can get to the truth has been shown in the movie 2001, where the astronaut catapults himself into the airlock and even manages to shut the door. All the exploding body parts stuff is nice special effects but has nothing to do with the truth.

Here are a few links:

http://www.sff.net/people/geoffrey.landis/vacuum.html
http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970603.html

Answer 2

Contrary to popular belief, a person suddenly exposed in space would not explode, freeze to death (space may be cold, but it's mostly a vacuum / perfect insulator; the main temperature worry for space suits is how to get rid of naturally generated body heat, not how to keep it to stay warm), or die from boiling blood, but would take a short while to die by suffocation. Air would immediately leave the lungs due to the enormous pressure difference between the lungs and the empty space. Any oxygen dissolved in the blood would empty into the lungs to try to equalize internal pressures. Once the deoxygenated blood arrived at the brain, death would quickly follow. Water vapor would also rapidly evaporate off from exposed areas such as the lungs, cornea of the eye and mouth, cooling the body in the process.

Answer 3

First of all, as you move up from the surface of the Earth it gets colder and colder because there is less and less atmosphere to hold the heat. Entering the region called Space there is no atmosphere at all and the temperature is roughly Absolute Zero. So without a space suit, anyone and anything would freeze in a very, very short time.

Since there is no atmosphere in Space, you would not be able to breathe and you would die of suffocation in a moment or two.

However, the instant cause of death would be the lack of atmosphereic pressure to which we are accustomed. On
Earth we experience a normal pressure of 14 PSI, and our
internal organs push back against the 14 PSI atmosphere
with a force exactly equal to that (14 PSI). So if your body was suddenly pushed out into Space where there is NO
atmospheric pressure, your body would explode almost at the very instant you were exposed to Zero atmosphere.

So, the suffocation would not get a chance to happen, and the remnants would freeze quite rapidly.

Answer 4

The gases in your body would undergo an immediate and violent rapid expansion. The gases in the astronaut's blood would boil out, however you probably wouldn't be able to notice because the expansion would be so rapid that the astronaut's body would likely explode.

Answer 5

you'd loose vision pretty much instantaneously (eyes burst), but otherwise suffer a painful death, where you are pretty much ripped apart, you could choke or freeze, but yeah, i can imagine you'd literally fall apart. because all you arms and legs would be both frozen and be deprived of oxygenated blood. but you'd probably wouldn't feel most of this, come to think of it, if your lucky you'd loose your consciousness. But yeah it all sounds like fun doesn't it

Answer 6

Nothing if it's wearing a tie

Answer 7

You would not have time to suffocate. you would freeze to death so fast you would not know what hit you.