A colorful view of Mercury produced using images from the color base map imaging campaign during MESSENGER's primary mission. These colors are not what Mercury would look like to the human eye ...

Mercury, named for the Roman messenger of the gods, is the smallest planet in our solar system and the closest to the sun. It's also one of our nearest neighbors — the planet can come as close ...

Discover why Earth's farthest distance from the sun coincides with summer heat, then grab your binoculars for a week of ...

Mercury is the closest planet to the sun and the smallest planet in our solar system.With a diameter of about 3,032 miles (4,880 kilometers), Mercury is less than half the size of Earth, which is ...

After tonight, the tiny planet will appear lower in the sky each day. But stay tuned, because this Sunday, Mercury, Venus, and the Moon will paint a beautiful picture as they cluster together in ...

New research explains how meteorites called aubrites may actually be shattered pieces of the planet closest to the sun from the early days of the solar system. By Jonathan O’Callaghan Mercury ...

An iron-rich planet spotted in a nearby solar system could help scientists understand the mystery of how the planet Mercury formed in our own neighborhood. The newly-described planet is about 31 ...

Mercury will retrograde from Dec. 13 through Jan. 2 in the last of four times it appears to move backward in the sky this year. Every planet has in our solar system has retrograded for at least ...