Mars is probably smaller than you think. It's just half the size of Earth, with barely a third of its mass. Even the Martian moons Phobos and Deimos are petite, measuring just a few kilometers in ...

"If the moon and a planet are near Castor and Pollux you have an impressive show." From our earthly perspective, the moon and Mars will appear closest to each other at around 8 p.

mysterious moon. While on a flyby of Mars, Hera was able to use three of its imaging instruments to capture images of Deimos, the smaller of Mars' two moons, the ESA said. Deimos is about 15,000 ...

A space exploration mission to study an asteroid that NASA deliberately crashed a spacecraft into three years ago has taken stunning bonus images of Mars and its moon Deimos en route to its final ...

During its brief rendezvous with the Red Planet, Hera caught a glimpse of the less-seen side of Mars’ smaller, tidally-locked moon as it orbited its home planet. The European Space Agency (ESA ...

A recent study suggests that toxic Martian dust could pose significant health risks to astronauts, necessitating specialized ...

The Moon 2 Mars Festival is happening at Space Center Houston and photojournalist Darlene Janik Faires has a look at what you ...

NASA's Europa Clipper is about to use Mars' gravitational pull to slingshot itself as it makes its way to Jupiter's fourth-largest moon later this week. The craft launched from the agency's ...

SpaceX CEO Elon Musk is calling for NASA to ditch its Artemis program, arguing that the "Moon is a distraction" and that "we're going straight to Mars" instead in a recent tweet — and directly ...