This Fireworks Show Is a 4.5 Billion-Year-Old Meteorite Exploding

Back in October 2012, a meteorite whizzed through our atmosphere and broke up in a dazzling display over California. One particular fragment, embedded in the roof of a house, was recovered by NASA for study. Now NASA is ready to reveal a bit more about the meteorite, which was likely formed in the same collision that made the moon 4.5 billion years ago.