On Sept. 30, NASA's Perseverance rover turned its eyes toward the sky and photographed a solar eclipse from Mars, capturing the tiny moon Phobos as it transited the sun.
be tangible evidence that the red planet once had a large moon that somehow escaped. In a yet-to-be-peer-reviewed paper, Efroimsky points to Mars' vast bulge near the planet's equator called ...
Mars is unique among the rocky planets, not only for its red color but also for its extreme geography. This distinctiveness could be explained by the existence of a disappeared moon. Mars, which today ...