As for how amateurs can tell if an odd-looking rock is a valuable find from outer space, Palma said there's a simple test that will give a quick clue.
"If you see a streak of light, and hear the sonic boom, it's a good giveaway that it landed someplace close to you and it's worth checking out," he said.
"The first thing to do is check to see if it's magnetic. It's not a guarantee, but most of them are."
