Mercury is the smallest planet in the Solar System and also the closest planet to the Sun. Mercury orbits the Sun at an ...

Using data from NASA's MESSENGER spacecraft, scientists have determined that the solar system's tiniest planet, Mercury, hides a not-so-tiny secret: a 10-mile-thick mantle of diamond.

For folks in the United States, July evenings mean 4th of July fireworks. While you're waiting for the show, be sure to watch ...

Scientists first predicted Mercury had a tail in the 1980s, and the tail was confirmed to exist in 2001, with more details having been learned by NASA's Messenger mission that orbited the planet ...

BepiColombo, a joint European-Japanese mission, completed its latest flyby of Mercury, sending back a sneak peek of the cratered planet it will begin to orbit in 2026.