A Mars scientist shares the inside story of the NASA Curiosity rover's poignant first photo of Earth and Mars moon Phobos ...

A third Martian moon around a third the size of our own could explain the anomaly. Mars's current satellites Phobos and ...

NASA's Curiosity rover has captured a spectacular sight from the surface of Mars: The first-ever photo of Earth alongside the ...

Unlike the other planets in the solar system, Mars is distinctly triaxial, meaning it is an ellipsoid with different sizes ...

An incredible photo shows Earth photobombing Mars' moon Phobos. It is the first time ever the two have been captured together ...

An astronomer at the U.S. Naval Observatory has developed a hypothesis to explain the unique shape and terrain of Mars. He ...

We are all familiar with our one Moon but other planets have different numbers of moons; Mercury has none, Jupiter has 95 and ...

NASA's Curiosity Mars rover used its Mast Camera, or Mastcam, to capture the view of Earth setting while Phobos is rising.

New simulations suggest that there are enough primordial black holes—potential dark matter candidates—in the universe for one ...

Physicists are still hot on the trail of a substance that could change everything: dark matter in the form of primordial ...

The Curiosity rover, which has been exploring Mars since 2012, continues to provide valuable scientific data and captivating ...

Unlike the other planets in the solar system, Mars is distinctly triaxial, meaning it is an ellipsoid with different sizes along all three axes. A long-lost moon could explain why Mars is so ...