I usually grab them from a science topic in Wikipedia. For example, these names come from astronomy (http://en.wikipedia.org/wiki/Astronomy http://en.wikipedia.

I usually grab them from a science topic in Wikipedia. For example, these names come from astronomy (http://en.wikipedia.org/wiki/Astronomy http://en.wikipedia.org/wiki/Astronomy): Hubble, Nebula, Cosmology, Cosmogony, Galactic, Stellar...