The oldest rocks on Earth are more than just ancient ... an organisms life's story is the key to figuring out why our incredible living world is the way it is. Today, we're gonna explore that ...

Geologists have now unearthed evidence of a 3.5 billion-year-old crater found in a layer of Australian rock. Shatter cones, which are features caused by the shockwave of a hypervelocity meteorite ...

(via Be Smart) The oldest rocks on Earth are more than just ancient—they’re time machines, holding clues to Earth’s missing history and revealing what happened in the unknown times after the Big Bang.