Mars' moon Phobos may actually be a comet — or at least part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

In an image snapped by the OLI (Operational Land Imager) on Landsat 8, Mexico's most active volcano Popocatépetl can be seen ...

Another hypothesis is that Phobos and Deimos formed very much like Earth's moon did — that an impact on the surface of Mars ...

A new study into the origins of the two Martian moons tends to blends the two most popular explanations, supercomputers had a ...

The space agency released photos and video Wednesday that show the Martian moon Phobos pass between the planet and the sun. The images were captured in September by the rover Perserverance ...

While analysing some old unpublished images of Mars' moon Phobos, researchers found something peculiar that might prove our previous understanding of the moon wrong. Phobos, also known as the ...