A NASA X-ray imager is heading to the Moon as part of NASA's Artemis campaign, where it will capture the first global images of the magnetic field that shields Earth from solar radiation.

Tristan da Cunha is a group of islands in the South Atlantic that formed from the breakup of the supercontinent Gondwana.

Fast solar wind from a massive coronal hole in the sun could trigger dazzling auroral displays as geomagnetic activity is ...