Spaced Out

For the first time in a long time, here comes the Space Stuff:

Cassini orbits Saturn, finds cool stuff:
http://www.space.com/scienceastronomy/080707-mm-cassini-findings.html

Volcanic activity on Mercury?
http://www.space.com/scienceastronomy/080703-mercury-messenger.html

Earth: Just Right, Goldilocks:
http://www.space.com/scienceastronomy/080708-st-special-earth.html