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part of one — that was gravitationally captured by the Red Planet long ago, a new preprint study based on previously unpublished photos ...

Images from the Hera mission show the object in remarkable detail — a small island gliding above the crater-scarred Martian ...

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 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 ...

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

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 ...

New images of the mysterious Martian moon Deimos were captured when the Hera mission activated its instruments past Earth for ...

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 ...

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