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 ...

An international team from Kanazawa University (Japan), Tohoku University (Japan), LPP (France), and partners has ...

Skywatchers across the Northern Hemisphere have caught a fleeting glimpse of Mercury as it made one of its final visible appearances of the year. Appearing low on the southwestern horizon just after ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. From July 17 to Aug. 10, Mercury will appear to move ...

Turns out, it's as tough to drop inward into the inner solar system, as it is to head outward. The problem stems from losing momentum from a launch starting point on Earth. It can take missions ...

A collision with an asteroid might have set the planet Mercury whirling oddly in its orbit, a new study suggests. When one body orbits another — say, a moon around a planet or a planet around a star — ...

The long-anticipated BepiColombo mission is entering its decisive phase. Launched in 2018, this joint endeavor between the European Space Agency (ESA) and Japan Aerospace Exploration Agency (JAXA) is ...