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NASA's Perseverance Mars rover used its Mastcam-Z camera to capture the silhouette of Phobos, one of the two Martian moons, as it passed in front of the Sun on Feb. 8, 2024, the 1,056th Martian day, or sol, of the mission. This is one of several transits of Phobos that NASA's Mars rovers have captured. By comparing the various recordings, scientists can refine their understanding of the potato-shaped moon's orbit, learning how it's changing. Eons from now, Phobos' orbit is expected to eventually send the moon toward the Red Planet's surface. The video shows the transit as it happened in real …