A crater nine kilometers across sits on the surface of a moon barely twenty-two kilometers wide, and inside that scar planetary scientists suspect a clump of unusually dense rock is hiding. Locating ...

Thanks to JAXA, the Japan Aerospace Exploration Agency, and its sample-return capabilities, we're on the cusp of receiving ...

The Perseverance Mars rover's Mastcam-Z camera the Martian moon Phobos transit the Sun. See real-time and time-lapsed views here. Credit: Space.com | NASA/JPL-Caltech/ASU/MSSS/SSI | edited by Steve Sp ...

A massive crater on Mars’ moon Phobos may hide a dense region of compressed material that could reveal whether the moon is a captured asteroid or debris from an ancient impact on Mars. Japan’s ...

In the August 29th edition of "Today's MMX Quiz," a question was asked about the world-first achievement that the Martian ...

Add Yahoo as a preferred source to see more of our stories on Google. On March 27, 1989, the Soviet Union's Phobos 2 mission to Mars' moons ended in failure. ['On This Day in Space' Video Series on ...

Phobos --- the enigmatic, oddly-shaped Martian moon --- could serve as an eventual pit stop for human missions to the Red Planet. That’s, of course, contingent on future Mars exploration strategies.

The origin of Phobos and Deimos, the two Martian moons, has been a mystery to astronomers. These two bodies are a fraction of the size and mass of the Moon, measuring just 22.7 km (14 mi) and 12.6 km ...