Science magazine has chosen the geological demonstration of long-term bodies of water on Mars as their breakthrough of the year. Even more appropriately, they sing the praises of doing science remotely. Robots with flash card memories are able to figure out a heck of a lot before astronauts are needed.
(Meanwhile, I didn't mention this before, but the Spirit site also now has minerological evidence of long-term water action: the robot has observed Goethite , esssentially rust, up on the higher hills. This could be very interesting, but I will need to read more about it. ) The two landing sites were pretty carefully chosen because of satellite evidence of water. Still, it's nice to see it confirmed, twice.
A press conference about Titan was scheduled for Thursday in San Francisco- maybe more interesting stuff.