The study used both mathematical calculations and computer simulations to model how Phobos behaves under increasing tidal stress.

But Phobos won't zip around Mars forever. The doomed moon is spiraling inward at a rate of 1.8 centimeters (seven-tenths of ...

This clip was recorded in 2022 by NASA’s Perseverance rover on Mars. The footage is significant because it shows Mars’ largest moon, Phobos, crossing in front of the Sun in real time. The original ...

Although both moons orbit Mars much closer than our own Moon orbits Earth, they also are very small: Phobos measures only 12 miles (19 kilometers) across and Deimos is half that. Their apparent sizes ...

A researcher says he found a possible shortcut to Mars that would halve the time it takes to travel to the planet and back to less than a year.