NASA's Mercury-orbiting spacecraft, Messenger, is going out with a bang this week, adding a hefty crater to the little planet closest to the sun. The first spacecraft to circle Mercury, Messenger is ...

ESA's Solar Orbiter captured views of the planet Mercury passing in front of the Sun. Multiple instruments aboard the spacecraft captured the imagery. Credit: Space.com | footage & orbit animation cou ...

For decades, Mercury was thought to be a simple, burned-out planet close to the Sun. NASA’s MESSENGER mission completely overturned that view, revealing unexpected chemistry, strange surface features, ...

The smallest planet in our Solar System may be hiding a big secret. Curious bright streaks on Mercury's surface, doodled on ...

NASA is asking for the public's help, but there's a catch. Mercury's surface is seen in exaggerated color in this image provided by NASA. NASA/JHU APL/CIW — -- NASA is asking for the public's ...

Mercury reaches its peak evening visibility this February, offering Northern Hemisphere observers a longer post-sunset viewing window, higher altitude and a crescent moon reference.

Learn about the bright streaks that may represent recent geological activity on Mercury, which has been considered a dead ...

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 ...

Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why it is often perceived as a dead and dry planet. A new study led by Dr.