Space.com Early Meteorite Bits Reveal Clues About Solar System’s Evolution 23 January 2017 fborgosano Leave a comment Share: Many meteorites found on Earth are remnants of one titanic solar-system collision that took place more than 460 million years ago. But researchers have found the composition of space rocks before then are quite different than those today. from Space.com bit.ly/2jJCAOX Share: