the 22-km diameter innermost moon of Mars, is a groovy body. Unlike its little brother Deimos, Phobos has developed a striking pattern of parallel linear features running across its surface.

A major software upgrade allows the Mars Express to travel closer to a celestial body’s surface. This update could shed light on the moon Phobos’ mysterious origin by peering inside the moon.

Both Phobos and Deimos are visible from the martian surface. Phobos is much brighter ... Phobos is so close to Mars and orbits so quickly — roughly once every seven hours and 39 minutes ...

The proximity of Phobos to Mars has allowed the Mars Express spacecraft to capture incredibly detailed images of its surface, revealing craters and grooves that tell the story of its violent past.

A new study has revealed that the weird parallel grooves on the surface of Mars' largest moon Phobos could be a sign that the Red Planet's gravity is ripping the satellite apart. When you purchase ...

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

“We’re seeing that the surface of Phobos is relatively uniform and made ... It’s been surveying Mars since 2001, which is a mighty long time for any spacecraft to remain operational ...

The reason the origin story of Phobos is so hard to trace is because of its appearance. It’s much darker than the surface of Mars, and the stark difference in color — Phobos being much darker ...

Mars's moons Phobos and Deimos are a little different ... long grooves running across its surface, as well as being covered in loose regolith (rock and dust). There are a few theories about ...

Orbiting Mars three times a day, Phobos is much closer to the planet's surface than its brother Deimos, according to NASA. Gouges from thousands of meteorite impacts mark the moon, which ...

Mars can look deserted, but it has its tales. Some are inscribed in dust storms and crater walls. Others are seen in the ...

NASA’s Odyssey snapped Arsia Mons jutting above dawn clouds—revealing new insights into Mars’ upper atmosphere and volcanic ...