The Red Planet’s two tiny moons—Phobos and Deimos—could have formed after an ancient collision, according to new research. It’s an intriguing possibility, but not everyone is convinced by the evidence. Phobos and Deimos resemble potatoes (though this may actually be seen as an insult to potatoes). The origin of these malformed moons isn’t entirely … Continue reading Computer Simulations Suggest Martian Moon Collision