An asteroid 20 times larger than the one that may have wiped out the dinosaurs struck Jupiter's moon Ganymede some 4 billion years ago, dramatically shifting the possibly life-hosting satellite's axis ...
Differences in the number and speed of cometary impacts onto Jupiter’s large moons Ganymede and Callisto some 3.8 billion years ago can explain their vastly different surfaces and interior states, ...
Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. NASA’s Juno spacecraft has been exploring Jupiter since it ...
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