NASA’s Lunar Reconnaissance Orbiter (LRO) will officially reach 100 lunar days of “collecting scientific data at the Moon” in Oct. 2017, according to NASA’s Goddard Space Flight Center. The probe launched in 2009. Learn how a lunar day differs from an Earth day.
Credit: NASA's Goddard Space Flight Center/David Ladd
Music provided by Killer Tracks: "Time is Running" - Dirk Ehlert, Guillermo De La Barreda; "Buckaroo Instrumental" - Alan Gold & Fiona Hamilton.