I've updated some images, including the Shuttle STS-124 mission, Phoenix Lander (I'll add more there in a few weeks when there's a better selection to choose from) and the ISS wallpapers.
In the news:
NASA Tests Lunar Robots and Spacesuits
NASA Awards Contract for Moon Spacesuit
Ulysses spacecraft mission to end
NASA's GLAST mission launches
Photos are available via the links at the bottom of each press release.