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Cosmic Detective Work: Why We Care About Space Rocks

7 Nov 2018, 18:17 UTC
Cosmic Detective Work: Why We Care About Space Rocks NASA/JPL-Caltech/UCLA/MPS/DLR/IDA

The entire history of human existence is a tiny blip in our solar system's 4.5-billion-year history. No one was around to see planets forming and undergoing dramatic changes before settling in their present configuration. In order to understand what came before us — before life on Earth and before Earth itself — scientists need to hunt for clues to that mysterious distant past.

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