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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

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

With groups like NASA and the European Space Agency focusing largely on missions to explore Earth’s moon and Mars, the Japanese ... sample from the Martian moon Phobos and sending it back ...

Astronomers used a computer to simulate the orbits of both Phobos and Deimos. The moons of Mars — Phobos and Deimos — are two fragments of what was once a much larger Martian satellite that ...

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 ...

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

Deimos, the smaller of the two moons, orbits Mars every 30 hours and is less than 10 miles across. Its larger sibling Phobos bears many scars, including craters and deep grooves running across its ...

Mars and its lesser-known city-sized moon, Deimos, has been imaged by a spacecraft on its way to study an asteroid.

The Hera probe has swung around Mars, using the planet’s gravitational pull to fling itself toward its asteroid target.

On March 27, 1989, the Soviet Union's Phobos 2 mission to Mars' moons ended in failure. But the whole mission was definitely ...