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[Sheb]

Not real, that has to do with the partial pressure of gases in your blood.

[10ebbor10]

Because the notion of relatively, is well, relative ^{[citation needed]}. As in, you should probably survive this.

But anyway, the pressure difference is not so severe. At 10 meters depth, pressure is about 2 atmosphere, very few people imploding there. The skin is perfectly gas tight even in pure vacuum.

I have found unconfirmed evidence that your flesh would expand to about twice it's usual size*, but more importantly, you might have trouble breathing. In any case, the system isn't that secure, is it.

*doubtfull, but there will be tissue damage

[miauw62]

Your flesh inflating, even if it's not two times it's original volume, will probably be quite painful if there's a breathing mask firmly attached to your face.

Also does this mean that shaving yourself in a vacuum would be suicide?

[Sheb]

But anyway, the pressure difference is not so severe. At 10 meters depth, pressure is about 2 atmosphere, very few people imploding there. The skin is perfectly gas tight even in pure vacuum.

True, a) it could simply be that the body is better at resisting inward rather than outward pressure and b) at least when scuba diving, your lungs are filled with air at the same pressure as the surrounding environment. That doesn't work in space.

[Mech#4]

Well, it doesn't sound very comfortable, and if I had to do fiddly repair work I'd like to be reasonably comfortable so I could focus on the job better.

[Il Palazzo]

I have found unconfirmed evidence that your flesh would expand to about twice it's usual size*, but more importantly, you might have trouble breathing. In any case, the system isn't that secure, is it.

*doubtfull, but there will be tissue damage

Look up Project Excelsior - a series of high-attitude jumps in the 60s. The third jump was from ~35 km attitude, at which atmospheric pressure is comparable to that on Mars. One of the gloves of Kittinger's suit failed, and his hand was exposed. It got swollen to about twice the size and caused much pain.
At that pressure, even taking into account the tissue elasticity, ebullism is a real possibility.

[10ebbor10]

I'm still maintaining the notion of relatively fine. The breathing system will need to actively pump air in and out of your lungs, you'll scream in pain from tissue damage, but you'll be mostly alive.

[Descan]

By the time we're colonizing mars, we'll probably have suit-locks and spandex space-suits that keep the body pressurized by hugging tightly the body, instead of filling it with 1atm of oxygen. :v

Once and if we start terraforming it, releasing oxygen and possibly sucking some Venusian atmosphere away and putting it on mars (because hey, why not kill two birds with one stone? It'd take a fair bit of engineering to fling the compounds from Venus to Mars but so would terraforming so why not?) and thereby raising the pressure to something along the lines of Everest or air-craft flight height, then maybe we can get away with oxygen masks and some warm clothes, but I don't think the first Martian colonists or ESPECIALLY The first martian astronaut can get away with it. They'll need to carry at least *some* pressure with them.

Plus I wanna see dem hunky astronauts in spandex, so sue me~

[RedKing]

* RedKing represents NASA in the case of "Astronauts Uncomfortable With Having Their Space Junk Ogled vs. Descan"

[Sheb]

To be fait to 10ebbor10, he did mention goggles would be needed, so the eyes should be fine.

[Helgoland]

I thought it was a mask covering the sensory organs...
What about your innards being sucked out through your junk/butt?

[Mech#4]

Well good, we can watch ourselves blow up like the Stay-Puft Marshmellow man.

Edit: This "eyes still working" keeps sounding better and better!

[10ebbor10]

I did specify that having other orifices covered might be beneficial.

Suprisingly, I forgot to mention the eyes.

[miauw62]

I'm imagining ass goggles myself.

[Arx]

I keep thinking of a gas mask and a pressurised diaper. On a hideous bloated purple body...