NASA Intentionally Crashes Lunar Prospector on Moon July 31, 1999
Discovery Program: Lunar Prospector: NASA intentionally crashes the spacecraft into the Moon, thus ending its mission to detect frozen water on the Moon's surface. Date: July 31, 1999 Read more on Wikipedia → 📅 Other events on July 31 📅 Events on this day in 1999 📅 On This Day (Today)