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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...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

The European Space Agency's probe Hera snapped this image of the tiny and mysterious Martian moon of Deimos. The probe zipped ...

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

While the car-sized spacecraft flew around the Mars system, flight controllers on Earth temporarily lost communication with ...

On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare ...

Phobos and Deimos – these names from Greek mythology were ... The resulting rocky debris will probably form a temporary ring around Mars. The first close-up images of the martian moons were sent to ...

On the way to investigate the scene of a historic asteroid collision, a European spacecraft swung by Mars and captured rare ...

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 ...