Cracks in Marius Regio on Ganymede
NASA/JPL/OWW
Jupiter’s moon Ganymede is covered in cracks that may be evidence of a huge collision, making them the largest known impact structure in the solar system.
Ganymede is the biggest moon in the solar system, and the ninth biggest object – larger even than the planet Mercury – measuring more than 5000 kilometres across. It has been visited by multiple spacecraft, including NASA’s Voyager 1 and Voyager 2 probes in 1979, and the Galileo spacecraft from 1996 to 2000.
Images from these spacecraft revealed cracks or furrows on the surface of the moon, …
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