Cosmic detective work: Why we care about space rocks
Thursday, November 8, 2018 - 07:20
in Astronomy & Space
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.