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Huge asteroid impact may have knocked over Jupiter’s largest moon

The solar system’s largest moon, Ganymede, alongside Jupiter in a picture taken by NASA’s Cassini spacecraft NASA/JPL/University of Arizona A massive collision billions of years ago may have dramatically reoriented Ganymede, Jupiter’s largest moon. Naoyuki Hirata at Kobe University, Japan, and his colleagues studied Ganymede’s extensive furrow system, a series of concentric troughs believed to […]