NASA's Kepler Spacecraft Discovers Extraordinary New Planetary System
Although I must admit, I'm getting a bit bored with all these discoveries of things that aren't even remotely close to looking like our solar system. The gas giants are huge, the Earth's are SUPER, and the temperature extremes are, well, extreme.
I do wish the aliens would just show up, smack some sense into the human race, and set us on the right path to living sustainably on this finite Earth. Eh, one can dream.