NASA's twin Grail spacecraft will crash into the lunar surface intentionally next week, bringing their gravity-mapping mission to a spectacular end.Full story
An artist's conception shows the Grail probes, known as Ebb and Flow, flying in formation over the lunar surface.
NASA handout image shows an artist's concept of the Gravity Recovery and Interior Laboratory mission's twin spacecraft in orbit around the moon. The GRAIL mission will fly the spacecraft, in the same orbit, over areas of greater and lesser gravity, caused both by visible features such as mountains
epa03370011 An July 1969 picture provided by NASA shows US astronaut Neil A. Armstrong, commander of the Apollo 11 Lunar Landing mission in his space suit, with his helmet on the table in front of him. Behind him is a large photograph of the lunar surface. Astronaut Neil Armstrong, 82, the first man
Apollo 11's U.S. flag stands on the lunar surface.