Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean ...

Mars is absolutely dripping with evidence that the red planet was once a striking blue, complete with glistening lakes, ...

It’s a cosmic season in Southern California; look for the unveiling of Griffith Observatory’s Celestial Globe, too.

Olympus Mons is a giant volcano on Mars. It is the tallest mountain in space. It is almost three times higher than Mount ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

Billions of years in the future, our Sun will become a red giant and then die out. But when the Sun dies, where do we go?

Mars’ positioning is what gives the lighter planet such a strong pull. “The closer it is to the sun, the more a planet ...

Mars today is a frozen, dusty desert. But if you look deep inside Valles Marineris, the largest canyon system on Mars and in ...

Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.

MAVEN has remained silent since Dec. 6 despite repeated attempts to contact it, according to NASA. As part of the recovery ...

This doesn’t mean Mars causes ice ages on its own. Orbital cycles are only part of the picture. Earth’s oceans, atmosphere, ...

A Mars spacecraft has now been AWOL for more than a month. But NASA hasn't given up hope of restoring contact with the MAVEN ...