Credit: NASA/GSFC/ARIZONA STATE UNIV.

All is going smoothly so far for NASA's Lunar Reconnaissance Orbiter, which launched on 18 June. On 2 July it captured its first high-resolution test images of the Moon (pictured right), kicking off a year-long mapping mission.

Regular updates from the orbiter can be found on its Twitter feed (http://twitter.com/LRO_NASA). Meanwhile, Nature is twittering the Apollo 11 Moon mission as it happened in real time — 40 years on (http://twitter.com/ApolloPlus40).