The rovers on Mars are still collecting science and kicking butt. They landed January 2004 and were supposed to last all of 90 days. The fact that they managed to spend a Mars year and beyond is simply incredible.
Opportunity is now at Victoria Crater and taking some of the best pics we have ever seen. Sometime in the future it may even travel into it.
Not to be outdone, the Cassini mission to Saturn is going well too. MOF, the cameras on the spacecraft detected a new ring recently. Before that it found evidence of an ethane cloud on Saturn's moon, Titan.