The two small moons of Mars, Phobos (about 22km in diameter) and Deimos (about 13km in diameter), have been puzzling scientists for decades, with their origin remaining a matter of debate. Some have proposed that they may be made up of residual debris produced from a planet or large asteroid smashing into the surface of Mars (#TeamImpact).
An opposing hypothesis (#TeamCapture), however, suggests the moons are asteroids that were captured by Mars’s gravitational pull and were trapped in orbit.
