Data collected by NASA's InSight lander suggest that ancient internal processes are responsible for the "Martian dichotomy" ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant planets, suggests a new study.

Mars will appear to make an ultraclose approach to the moon on Sunday, after Jupiter had a turn earlier this week. Here's how ...

An international team of researchers has found dark matter dominating the halos of two supermassive black holes in galaxies ...

"Temperamental" stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant ...

Towards the end of the month, Mercury appears in the evening sky, and climbs up past Saturn. In the dusk glow, you may be ...