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[Monique]

Sinus Iridum is a mare-filled impact crater that superposes the Imbrium basin. It is far from any Apollo landing sites, with the closest (Apollo 15) being more than 1000 km distant. Scientists would love to have a look at the chemistry of these basalts – how much do they differ from the Apollo 15 basalts which are from the other side of Imbrium? Wrinkle ridges cross the mare, and in places families of boulders are perched on the ridges. Are the boulders weathering out of the ridge? Many small irregular shaped craters dots Sinus Iridum, how were they formed? The LROC team will post selected NACs over the coming weeks, you can join the effort to explore this future landing site now!

http://www.nasa.gov/mission_pages/LRO/multimedia/lroimages/lroc-20101015-sinus-iridum.html

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