We review current knowledge of the flux of meteoroids on Phobos, a key to interpreting its cratering record and understanding the origin of the Martian satellite system. Past observational attempts to estimate the flux of small (mm to cm) meteoroids as meteors in the Martian atmosphere highlight the need for customised instrumentation onboard future missions bound for Mars. Read more
Some 135 years after its discovery, Mars' largest moon Phobos is seen in fantastic detail - and in 3D - in an image taken by ESA's Mars Express spacecraft as it passed just 100 km by. This view is much different to the faint object that astronomer Asaph Hall would have just been able to make out as he observed the Red Planet through the United States Naval Observatory's 66 cm telescope in 1877. Through this telescope he discovered Mars' smaller, outermost moon Deimos on 12 August and the larger, innermost moon Phobos on 18 August. Read more