The pressure you push out with isn't enough to make you explode or expand... But you would still die. The glass wouldnt break, because I would assume it would be special glass. (like what they have on the international space station.)
Acctually, you only expand when, you hold your breath, then you get the bends and suffocate and die, your body would still be intact
you do not explode in 0 pressure, you just expand to about twice your size, your skin is strong enough to stop you from exploding
The atmosphere of earth is heavy, we, humans live in a high pressure, our bodyes, and ''heads'' push with an oposite power to the outside pressure, if the pressure would have been zero, than our heads would have pushed, but would not have an oposing force, so, they would push till explosion. So, yeah, at 0 presure, you make an explosion, at high pressure, you implode . Takeing your helmet off in space would result in your head crack for a second, and than it would stop, because it would freze at teribly low temperatures, it does explode, but not the way you emagine it. So, anyway, you die :D .
Oh and the pressure of space is almost zero.
@kieran, No, if you took off your helmet your whole body would be squashed into a liquid and evaporate. Not explode.
it is realistic and you are wrong.if you took your helmet off in space, it would make your head explode, meanwhile: if ou took your helm off in 0 pressure, your head would NOT explode, idiot.
the air pressure in space is 0 because there is no oxygen in space