Phobos and Deimos: Two Moons, From One Source?


Running the clock back on the enigmatic pair of Martian moons Phobos and Deimos gives researchers insight to their possible origin.

A recent study provides crucial clues on the possible ‘origin story’ for the two tiny moons of Mars, Deimos and Phobos.

Modern astronomy provides us with a snapshot, a look at the present state of affairs across the solar system… but what were things like in the distant past? The existence of the two tiny moons seen orbiting Mars presents a particular dilemma for astronomers. Close up, Phobos and Deimos resemble tiny misshapen captured asteroids… but how did they get into the neat, tidy orbits that we see today?

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