The Cassini probe has found evidence of oxygen in the thin atmosphere of Saturn's moon Rhea. The oxygen is generated by chemical reactions on the moon's surface rather than through the biological methods that maintain the oxygen in Earth's atmosphere, but it's still pretty keen.
Any day Calvin Mirabeau gets to murder someone is a good day, as far as he's concerned.
On an unrelated note, I would like to re-plug two comics I've mentioned in this space before, Between Failures and Sodium Eyes. Why? Because I like them, that's why.