A Rare Meteorite Just Revealed a Lost, Mars-Sized Planet from the Dawn of the Solar System

A slice of the NWA 12774 meteorite. The green in the upper right is a olivine crystal. Credit - John Kashuba

Meteorites are (usually) gifts from the heavens. They provide unique insights to parts of the solar system that we couldn’t access otherwise – either because it’s too expensive, or because the solar system itself has evolved since it was formed. A new paper from researchers at the University of Colorado Boulder details how one particularly famous meteorite offers a window into just such a bygone age of the solar system – and the failed planet that was a part of it.

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