WATCH: NASA Spots Brightest Lunar Explosion Ever Recorded, May 18, 2013

 "YouTube NASA scientists say they witnessed an extremely bright lunar explosion this past March. In fact, it is the biggest explosion they've seen since they started keeping track of such events in 2005. "On March 17, 2013, an object about the size of a small boulder hit the lunar surface in Mare Imbrium," Bill Cooke, of NASA's Meteoroid Environment Office, said in a press release. "It exploded in a flash nearly 10 times as bright as anything we've ever seen before." What's cool is if you had been looking at the moon at just the right time, you would have seen a one-second flash caused by the impact of a nearly-90 pound meteoroid that was traveling at 56,000 mph. The impact was picked up by one of the Meteoroid Environment Office's 14-inch telescopes. One intriguing question is how a meteoroid can cause an explosion on the Moon, which has no oxygen atmosphere."
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