Scientists say Vallis Schrödinger and Vallis Planck—dramatic trenches near the lunar south pole—were carved in a blast that ...

Here's why Feb. 10 will be the worst day of the month, and what it means for your zodiac sign. The moon is in emotional ...

Like a celestial parade across the cosmos, five bright planets are lighting up the night sky and visible with the naked eye ...

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

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...