It's possible that Mars' moons were originally asteroids that were captured by the planet's gravitational pull. There's also a theory that the two moons were created after a large object collided with ...

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 ...

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 — ...