World's oldest impact crater found, rewriting Earth's ancient history

How "asteroid detectives" are protecting Earth from potentially dangerous impacts: "Find them before they find you"

Scientists have discovered the world’s oldest known meteorite impact crater in Western Australia | It has been dated to about 3.5 billion years ago, at a time when these almost literally Earth-shattering events should have been occurring regularly.

DNA-busting radiation from star-killing supernova could have influenced evolution on Earth