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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

Its larger sibling Phobos bears many scars, including craters and deep grooves running across its surface. Scientists have long debated what caused the grooves on Phobos. Are they tracks left ...

For an hour, HERA flew as close as 5,600 kilometers from the Martian surface, at a speed of 33,480 kilometers an hour. It ...

The results of Hera's flyby could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant ...

The MMX rover will fulfil several tasks on Phobos: Firstly, it will provide important findings in preparation for the landing of the mother craft. Secondly, it will analyse the surface composition and ...

Another hypothesis is that Phobos and Deimos formed very much like Earth's moon did — that an impact on the surface of Mars threw debris into orbit that eventually coalesced into the two moons.

A space probe named Hera captured images of Mars' small Deimos moon while on a mission to examine an asteroid.

The European Space Agency (ESA) fires up three of the instruments on the Hera spacecraft and takes images of the smaller ...

Mars has two moons, Phobos and Deimos, but scientists know relatively little about them, especially the smaller one, Deimos.

The DLR Institute of Planetary Research's miniRAD radiometer will measure the radiation emanating from the surface of the Martian moon Phobos in six thermal infrared wavelength ranges in order to ...

For an hour, HERA flew as close as 5,600 kilometres from the Martian surface, at a speed of 33,480 kilometres an hour. It ...