Saturn’s Ravioli-Shaped ‘Ring Moons’ May Have Formed From a Giant Impact

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During the final days of the legendary Cassini mission, the NASA spacecraft performed a series of ring-skimming orbits around Saturn, snapping unprecedented images of the gas giant’s enigmatic ring moons. These photos and other data have now been analyzed by astronomers, shedding new light on these elusive objects and…

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https://gizmodo.com/saturns-ravioli-shaped-ring-moons-may-have-formed-from-1833637535

Bouncing Boulders May Finally Explain How Mars’ Ugliest Moon Got Its Stripes

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Mars boasts two of the ugliest moons in the Solar System, including Phobos—an oddly shaped, pockmarked moon featuring a distinctive set of stripes. Astronomers have debated the origin of these grooves for decades, but a new computer simulation suggests Phobos’ stripes were made by rolling and bouncing boulders…

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https://gizmodo.com/bouncing-boulders-may-finally-explain-how-mars-ugliest-1830588532