Crash. Tiny SMART-1, ESA’s first lunar probe (also a compact spacecraft technology test bed), has been in lunar orbit since November 2004. Following the success of its primary and secondary missions, ESA now plans to crash SMART-1 into the moon, with a hard landing on the near side which may be visible from Earth. More stuff on ESA’s little lunar trooper: SMART-1 lunar imagery, SMART-1 NASA Master Catalog entry, Planetary Society’s SMART-1 category, and SMART-1 on Wikipedia.