Mars, the fourth planet from the Sun, is a subject of fascination for astronomers. Though significantly smaller than Earth, this red-hued world has two moons that continue to spark debate among ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Mars' mysterious moons of Deimos and Phobos have long ...

One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...

The mystery of how Mars acquired its moons, Phobos and Deimos, may start to be unravelled in 2026 with the launch of a spacecraft that will eventually bring a chunk of Phobos back to Earth. “We are ...

Curious about how many moons Mars has? Discover fun facts about Phobos and Deimos — Mars' two tiny moons — including their origins, orbits, and a surprising future prediction. Mars has two moons — ...