(Original Caption) 1961- Wearing a high altitude pressure suit during tests in Republic Aviation's altitude chamber, a member of the Space Environment Laboratory checks his ventilation lines. The ...

Add Yahoo as a preferred source to see more of our stories on Google. In space (no one can hear you scream), astronauts need to bring their own air and atmospheric pressure, but that’s only the ...

For most of our history, we didn't have to worry all that much about wearing suits to adapt to our environment. Evolution is pretty good at building animals in such a way that they're at least ...