An astronomer is suggesting that Mars once had a large moon that exerted enough force to create a large bulge on its surface.

NASA’s Curiosity rover achieved a historic milestone by capturing the first-ever image of Earth alongside Phobos, one of Mars ...

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

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

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

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

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

In an out-of-this-world first, Earth and Phobos have been photographed together in the sky by NASA’s Curiosity. The rover has ...

The existence of a ring, forming around 466 million years ago and lasting tens of millions of years, could explain several ...

A passing star may have kicked the weird moons of giant planets like Jupiter and Saturn into place, new research suggests.

Minuscule meteoroids slamming into the lunar surface could be kicking up most of the atoms that make up the lunar exosphere.