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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...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 Mastcam-Z camera on NASA’s Perseverance rover captured the Martian moon Phobos as it eclipsed the sun. Credit: ...

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 ...

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

Phobos is larger, at 13.9 miles wide, whereas Deimos is just 7.5 miles in diameter and the former is closer to Mars than its smaller twin. Earth's moon has a diameter of 2,158 miles — 155 times ...

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 ...

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

The Red Planet and its tiny moon Deimos were recorded at a very near distance as the asteroid-chasing spacecraft completed a flyby on Wednesday.

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