"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." To understand the mantle—the largest layer of Earth’s rocky body—scientists drill deep cores out of the ...

"Being able to send something out there would enable us to take a lot more precise data than we currently can." ...

Healing the ozone layer protects us from UV rays, but it may also fuel far more global warming than once thought, challenging assumptions about climate progress.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Earth’s core is pretty dynamic. Its spin speeds up and slows down ...