Mercury has long been cast as the solar system’s burnout case, a small rocky world that cooled quickly and then froze in ...

Learn about the bright streaks that may represent recent geological activity on Mercury, which has been considered a dead ...

The smallest planet in our Solar System may be hiding a big secret. Curious bright streaks on Mercury's surface, doodled on ...

Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why ...

From just 295 kilometers above Mercury's surface, ESA's BepiColombo transfer probe has captured stunning close-up images while on its final flyby of the tiny, sunbaked world. The photos represent a ...

BepiColombo is slowly uncovering more and more fun facts about Mercury as it continues its preliminary mission. One of the ...

Far smaller and closer to the Sun than it should be, Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission arriving in 2026 might ...

After only 6 months in orbit around Mercury, NASA’s MESSENGER spacecraft is sending back information that has revolutionized the way scientists think about the innermost planet. Analyses of new data ...

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 ...

Mercury is a cold and desolate planet that appears to have little surface, no sign of water, and little atmosphere that can be observed. Wikimedia Commons A European-Japanese space mission will reach ...