Mars lander search

The Mars Reconnaissance Orbiter team is asking the public to help it find the Mars Polar Lander that presumably crashed in 1999. This involves looking through hi-res images, not traveling there, but it's a cool idea nonetheless. I was in Space.com's startup newsroom when the polar lander was lost, and that was one of various bad signs for the company's future (we'd assumed we'd be running lots of Mars images).