This impact created a transient crater between 870 miles and 1,000 miles in diameter on Ganymede’s surface. Transient craters are the cavities formed immediately after the initial impact ...

The cataclysmic collision was so devastating it created the largest impact crater in the solar system and knocked the supersized satellite off its axis, new simulations show. Ganymede is Jupiter's ...

The GAnymede Laser Altimeter (GALA ... The moon is characterised by unique structures due in large part to tectonic shifts, impact craters and basins as well as possible cryovolcanism. GALA was ...