Deimos is Mars' outer moon. It's a tiny, irregularly shaped moon and smaller than Mars' other moon, Phobos. Despite being unspectacular, Deimos remains a fascinating mystery. Deimos is one of only ...

Another hypothesis is that Phobos and Deimos formed very much like Earth's moon did — that an impact on the surface of Mars threw debris into orbit that eventually coalesced into the two moons.

DEADLY space radiation and rapid outbreaks of disease are just a few of the official Nasa dangers that visitors to Mars will ...

For much of North America, this enchanting phenomenon will be visible as the moon temporarily hides Mars from view. Known as a lunar occultation, this event occurs only about once every 14 years ...

A world-leading designer of space robots says gigantic new rockets being tested by billionaires Elon Musk and Jeff Bezos are ...

IDEFIX is to land on the Martian moon Phobos as part of the Martian Moons eXploration (MMX) mission and explore it while moving – despite extremely low gravity. The Japanese MMX mission targets both ...

This year, we were treated with a total solar eclipse, fantastic displays of the northern lights, spectacular meteor showers ...

On Monday, Mars will look reddish and bright as the moon passes in front of it, obscuring the planet for over an hour in some areas. "An occultation is when one celestial object passes directly ...