Last week, I wrote a story about how new simulations show that Mars' moons Phobos and Deimos were once part of a larger body. While Phobos is slowly spiraling in toward Mars, Deimos is still in the same orbit as that original moon. ⠀ ⠀ Read the full story: buff.ly/3l3YtYJ⠀ ⠀ IMAGE: Artist’s impression of the collision between a Martian primordial moon and an asteroid, which could have led to the formation of Phobos and Deimos. CREDIT: Mark Garlick / markgarlick.com⠀ ⠀ #planetaryscience #planetarysci #mars #phobos #deimos #martianmoon #science #space #simulation #illustration #sciart #collision