[Ford Prefect]

But won't they be dead from one of those things?

[jdjtcagle]

It can't be real... can it?

[redsniper]

I wonder what kills you first when your in space with no suit: the pressure or the cold?
Of course, there is the cosmic radiation, and not to mention the lack of air.

Decompression gets you, but you don't explode; you can actually survive about 90 seconds of exposure to 0 atm of pressure. Cold is less of a problem, because the only way to lose heat is through radiation since you're surrounded by vacuum.

http://www.sff.net/people/geoffrey.landis/vacuum.html

[Mefustae]

So, would the portrayal of vacuum exposure in the movie Sunshine be a reasonably accurate depiction?

[Colonol Dekker]

I believe event horizon is my favourite rendition. Looked cool to boot! Horizon wins over pancake earth theory every time

[NGTM-1R]

So, would the portrayal of vacuum exposure in the movie Sunshine be a reasonably accurate depiction?

You really won't do anything at all special. Eventually, the vacuum will dessicate and mummify you, but that's eventually. You'll flail around a bit, probably show some cyanosis (turn blue) after you stop and black out, and then you'll just look very...peaceful.

The Russians lost some cosmonauts to a faulty valve once, so we're pretty sure we know what it looks like.