The irregular shapes and orbits of Mars’s two small moons, Phobos and Deimos, have long been a subject of scientific ...

Mars has two moons, but they're not quite like Earth's moon. That's raised a lot of questions about where they're from, ...

In a remarkable moment during its journey toward Jupiter, NASA’s Europa Clipper spacecraft managed to capture a stunning image of Mars and its two moons, Phobos and Deimos, in one frame. This rare ...

The results of Hera's flyby could ultimately tell us whether Deimos is a captured asteroid or made from debris from a giant impact on Mars. Europe's Hera mission, on its way to the Didymos–Dimorphos ...

A space probe flying past Mars captured images of the red planet's small, mysterious moon. While on a flyby of Mars, Hera was able to use three of its imaging instruments to capture images of Deimos, ...

As an astronomer studying the universe beyond Earth, I’m fond of “outside the box” views almost by default. But one of my favorites is whenever a spacecraft takes a snapshot of our home world and the ...

An astronomical event will be visible to the United States tonight during the first full moon of the year. The full moon of the year will be accompanied by a lunar event called occultation, and it's ...

As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.