A U.S. spacecraft beamed hundreds of photos of Mercury back to Earth on Tuesday after a close encounter with the planet closest to the sun. The images show scientists never-before-seen landscapes on ...

The innermost planet of our solar system, Mercury, is barely wider than the continental United States, and is often seen as a ...

A European-Japanese spacecraft has beamed back some of the best close-up photos yet of Mercury's north pole as part of only ...

The morning of April 24 will give rise to a striking mini-planetary parade, as Mercury, Venus, Saturn, Neptune, and Earth's ...

A new study indicates that Mercury's core-mantle boundary (CMB) may possess a diamond layer that extends up to 18 kilometers ...

The planet Mercury is mainly made up of iron. Mercury has no moons. The planet's close proximity to the Sun makes having moons impossible, as the star's strong gravitational pull would likely pull ...

MIT astronomers have found a Mercury-sized planet, located 140 light-years away, that is disintegrating rapidly due to its ...

Venus and Saturn will be the easiest to spot — but for those with a clear view of the horizon, Mercury can be observed hanging low and bright in the cosmos. This planet parade — when planets ...

One shows the bright Kuiper crater just south of the center of the planet. Most of the terrain east of Kuiper had never before been photographed. A close-up of Mercury's surface, the highest ...