European spacecraft got rare close-up of Mars lesser-known moon

A European spacecraft on a journey to study NASA's asteroid crash site did a quick pop-in of Mars on its way, capturing unprecedented images of Mars' lesser-known moon, Deimos. Mars has two moons, Phobos and Deimos, but scientists know relatively little about them, especially the smaller one, Deimos. Nearly all of the images they have of it were taken from the Martian surface by rovers, and because the moon is tidally locked — meaning one full spin matches the amount of time it takes