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

Even the Martian moons Phobos and Deimos are petite, measuring just a few kilometers in diameter. Scientists aren't even sure how these objects ended up in orbit of Mars, but a new NASA study ...

"It's exciting to explore a new option for the making of Phobos and Deimos — the only moons in our solar system that orbit a rocky planet besides Earth's," Jacob Kegerreis of NASA's Ames ...

Like our moon, Deimos is tidally locked to Mars, meaning the same side always faces the planet—the only side visible to ...

A mission to survey the results of a deliberate crash between an asteroid and a NASA spacecraft has taken stunning images of ...

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

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 used the opportunity to test some of its scientific instruments, snapping ...

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

Its stop and turnaround in its orbit is because Earth is passing ... the most of any planet in the solar system. These moons, Phobos and Deimos, are believed to be either asteroids captured ...

The European Space Agency's Hera mission flew by Mars and its lesser-known moon Deimos on March 12, 2025, for a critical gravity assist for its journey.