What would happen to body of an astronaut if his spacesuit would be damaged during spacewalk ?

Question

Would he suffer from burns, his body would dehydrate or maybe explode ?

Answer 1

It depends on the damage.

A small tear, for example, would likely force the astronaut to abort the spacewalk and could result in some localized tissue damage -- basically a really bad "hickey".

A serious suit failure could result in "the bends" like those affecting divers as well as potential widespread damage to the skin. Loss of protection from temperature extremes could result in rapid freezing if in the shade or horrible burning if in sunlight.

Explosive decompression does NOT happen in space. Airplanes experience explosive decompression due to the Bernoulli Effect (they are moving at high velocity while surrounded by air). In space, normal air pressure in a station would be fourteen pounds per square inch (more or less). A small puncture causes air to hiss out as a leak, and not via explosive decompression as sci-fi movies like (they also like to have lots of sounds in a vacuum, too, so what do you expect?)

Answer 2

Kevin is close. Assuming it was not close to the sun...

A slight rip in the outer most layers could be dealt with. An extreme breach could not.

The body would immediately begin to swell from internal pressure of the cells. there may be some tearing of internal membranes and tissue, causing bleeding. They would then die of lack of oxygen and internal bleeding of the lungs. Then there would be a rapid freezing (water expands when frozen and the body is mostly water) of the flesh. However, the rapid freezing would hold the mass together; it would not expand infinitely. There would not be burns from temperature. The void of space is exceptionally cold and there is not sufficient heat to cause a burn. Although, UV light, as well as other types of radiant energy, could cause a burn to the surface of the frozen mass. It wouldn't be like being in a fire or anything though.

So, I guess the short answer is, you'd swell a lot, suffocate and freeze.

Answer 3

It relies upon on how severe the tear is. there are a range of layers to the matches they placed on for spacewalks. a significant tear, by skill of each of the layers (very not likely yet no longer no longer a possibility) might want to for sure be existence threatening because the astronaut might want to lose oxygen, conflict through from prompt decompression, lose information, and die. Very nasty demise.

Answer 4

I'm not sure, but I imagine since implosion occurs at depth in the ocean, that it would be the opposite in space. The astronaut's body might well explode if his suit becomes compromised.

Answer 5

The body would expand into the infinite.

Answer 6

depending on which planet, but mostly his body would freeze

Answer 7

It would instantly freeze up.