QUESTION:
What's the atmosphere of Saturn and its moons like - could we breathe it?

ANSWER from FAQ on June 3, 1999:
Saturn's atmosphere is composed mainly of hydrogen and helium, the same
gases out of which the Sun and most stars are made. Although these
gases are not poisonous to humans, they do not provide the oxygen we
need to live. Only Titan among Saturn's moons has an atmosphere.
Titan's atmosphere is mainly nitrogen (like Earth's) but, like
Saturn's, does not have enough oxygen for humans to breathe.