Wet Rocks On Mars

The Mars rover scientists are flipping out over finding rocks that had been in real water. It's really exciting. Jim Garvin of the NASA Mars Program is like a kid in a candy store.

Blueberries on Mars ... they are actually grey. And they aren't blueberries, just formations in the soil.

Lots of salt -- think Death Valley, Dead Sea, or maybe a really big McDonald's fries package left there by someone.