Scientists are confirming a recent and rare invasion from Mars: meteorite chunks from the red planet that fell in Morocco last July. This is only the fifth time scientists have chemically confirmed Martian meteorites that people witnessed falling. The small rock refugees were seen in a fireball in the sky six months ago, but they weren't discovered on the ground in North Africa until the end of December. The piece quotes University of Alberta researcher and meteorite collection curator Chris Herd.
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