Fireball: Couch-Sized Rock Lights Up the Sky Over Arizona

Last Thursday, June 2, 2016, at 10:56:32 UTC (03:56 local time), a rock the size of a typical living room recliner burned up over Arizona, bright enough to light up the sky and spark a lot of social media chatter and 911 calls. There are quite a few videos of it online. Here's a typical one: The bolide (the technical term for a bright meteor) was probably several times brighter than the full Moon, and as you can see in the video it brightened rapidly, flashed several times (this happens as the s...