Despite being the closest planet to the Sun, Mercury hosts water ice at its poles. Now scientists may know how it got there.

Aerojet, a GenCorp (NYSE:GY) company, announced today that NASA’s MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging) spacecraft has successfully achieved the first-ever orbit ...

The most impressive feature on Mercury is the Caloris Basin, a vast, multi-ringed crater over 800 miles across, which is ...

Japan’s Aerospace Exploration Agency (JAXA) has offered a definitive date for the BepiColombo mission’s arrival at Mercury.

Although Mercury is closest to the Sun, it remains one of the hardest worlds to reach. The BepiColombo mission, a project by the European Space Agency and the Japan Aerospace Exploration Agency, is ...

CAPE CANAVERAL, Fla. (AP) – The only spacecraft ever to orbit Mercury ended its four-year tour with a crash landing Thursday. NASA’s Messenger plunged from orbit as planned and slammed into the sun’s ...

MESSENGER began its 2,000th orbit around Mercury earlier this week, on May 22. The spacecraft completed its primary mission on March 17, 2012, and its first extended mission on March 17, 2013. The ...

"BepiColombo's main mission phase may only start two years from now, but all six of its flybys of Mercury have given us invaluable new information about the little-explored planet." When you purchase ...