Mars's moon Phobos is so strange that no one knows how it formed. But a forthcoming mission could solve this mystery - and a ...

An asteroid smacking into Mars could eject debris high above the Red Planet. If Deimos and Phobos formed from debris resulting from an asteroid collision on Mars, they must be younger than the Red ...

The moons of Mars, Phobos and Deimos, have intrigued astronomers for decades with their strange shapes and surprisingly regular orbits. While they resemble captured asteroids, their orbital ...

Phobos and Deimos – these names from Greek mythology were given to the moons of our neighbouring planet Mars, discovered in 1877 by the US astronomer Asaph Hall. Besides Earth's Moon, they are the ...

Shklovsky is slightly smaller, estimated to be 2 kilometres wide. Phobos is on a collision course for Mars Phobos may be Mars' biggest Moon but in comparison to Earth’s Moon, it’s pretty small ...

Egyptians called it "Her Desher," which means "the red one." Mars takes 687 days, or 1.8 years, to orbit the sun. It has two moons, Phobos and Deimos. This story was updated to add new information.