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

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

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

With a friend in the White House, the tech billionaire's extraterrestrial ambitions are ready for lift-off - but not ...

The next logical progression to space exploration would be sending people to Mars, but there are challenges to this, such as ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

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