Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

Thousands of mysterious clay mounds found on Mars were formed by ancient water on the Red Planet's barren northern plains, ...

The alignment of six planets – Mars, Jupiter, Uranus, Neptune, Saturn, and Venus – this month has sky photographers abuzz.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

Beautiful photos of the six planets aligned in the night sky have emerged online. Mars, Jupiter, Uranus, Neptune, Venus and ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

Tonight and throughout January, stargazers can see a planetary alignment in the night sky or what some are calling a ...

Images of Mars taken from orbit show thousands of mounds in a region sculpted by water billions of years ago. A robotic mission may investigate the area one day.

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

On Jan. 25, 2004, NASA’s Opportunity rover landed on Mars and sent its first pictures of the planet to Earth; originally ...

Planetary alignments aren't rare, but they can be when they involve six of the eight planets in our solar system.