A new study reveals a previously unknown meteorite impact that took place in northeastern Brazil some 6.3 million years ago. An international team of scientists found a 900-kilometer-long "strewn ...

A colossal asteroid strike about 6.3 million years ago scattered molten debris across what is now south-eastern Brazil, leaving behind a vast field of natural glass that researchers say ranks among ...

Here’s what you’ll learn when you read this story: In its 4.6-billion-year history, Earth has had some truly catastrophic run-ins with ancient celestial bodies. None rival the cataclysmic collision ...