For most space missions, the launch is the headline moment. For BepiColombo, the real milestone arrives years later. After ...

At the right point of the orbit and stellar cycle, the star’s chromosphere brightens.

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

The planet Mercury is the closest planet to the sun, and also the most difficult for spacecraft to visit and explore. This is because as spacecraft get closer to Mercury, the sun's enormous gravity ...