(Left) A colorful view of Mercury produced using images from the color base map imaging campaign during MESSENGER's primary mission (Right) what Mercury may look like were its outer layers stripped to ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Mercury, seen in this false-color image, may have a deep layer of inner diamonds, new research ...

An excess of carbon on the planet means that Mercury is starkly drab and gray on the surface. But new research suggests that underneath, the tiny world harbors a glittering interior fit to be the ...