A layer of diamonds up to 18 kilometers (11 miles) thick could be tucked below the surface of Mercury, the solar system's smallest planet and the closest to the sun, according to new research. The ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. An encouraging new experiment hints that cutting off mercury ...

Tiny tempests above cracks in Arctic sea ice help pull down toxic mercury and ozone from the sky — an unexpected new source of mercury pollution in the polar environment, according to research ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A layer of diamonds ...