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 ...

NASA's hardest working probe has finally run out of fuel, and will meet a tragic fate as it crashes into the planet Mercury on April 30. See the amazing photos this probe shared with us in its very ...

Scientists may have solved alongstanding mystery in the study of Mercury. For the first time, pieces of the Solar System’s innermost planet could be on Earth, potentially shedding light on a world ...

BepiColombo just imaged Mercury in a whole new light — mid-infrared light, to be precise. On the spacecraft's fifth flyby of Mercury earlier this month (out of a planned six flybys) BepiColombo ...

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 meteorites could open up a new avenue to understand Mercury, pictured, which is notoriously hard to study due to its proximity to the sun. NASA / Johns Hopkins University Applied Physics ...