As a result, an astronaut on Mars would see Phobos rising in the west and setting in the east. Deimos orbits Mars at an altitude of approximately 23,500 kilometres and has an orbital period of just ...

Mars's moon Phobos is so strange that no one knows how it formed. But a forthcoming mission could solve this mystery - and a host of other puzzles connected to the solar system's deep past ...

Fornasier noted that if Phobos was once a comet, Deimos may have been one as well ... which are comets whose orbits are gravitationally tweaked by Jupiter. These include the "rubber ducky ...

However, Phobos and Deimos have neatly circular orbits aligned with Mars' equatorial plane, which seems more likely if they had formed in orbit around Mars. Another hypothesis is that Phobos and ...

Barely larger than our own Moon, Mercury orbits precariously close to the ... explores the possibility that Mars’ moons, Phobos and Deimos, formed from asteroid debris torn apart by the planet ...

The Japanese Martian Moons eXploration (MMX) mission will explore how the two martian moons, Phobos and Deimos, formed and improve our understanding of the formation of the planets in our Solar System ...

From its peculiar reddish colour, to whether life ever existed on Mars, NASA has unlocked several secrets of the red planet over the decades. Check out these 7 stunning NASA images of Mars that reveal ...