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 ...

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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

Computer simulations suggest that Mars' puzzling moons, Phobos and Deimos, may have been formed from debris created when a large asteroid wandered dangerously close to the Red Planet. This new ...

However, there was no successful attempt to land on Phobos or Deimos to date. Little is known about their geological, mineralogical and geochemical properties. The Japanese space agency JAXA's MMX ...

It's called Deimos, and is much smaller and more mysterious than Phobos, the first moon of Mars. The pictures were taken by the ESA's Hera mission, which is on its way to an asteroid called ...