Jamie Carter is a freelance journalist and regular Live Science contributor based in Cardiff, U.K. He is the author of A Stargazing Program For Beginners and lectures on astronomy and the natural world. Jamie regularly writes for Space.com, TechRadar.com, Forbes Science, BBC Wildlife magazine and Scientific American, and many others.
Where it is: About 417,000 miles from Jupiter and 500 million miles from the sun.Why it's so special: Slightly smaller than Earth's moon, Europa is more like a planet. It has a magnetic field, a tenuous oxygen atmosphere and a liquid iron core. It also has an icy shell 11 miles thick that hides a salty ocean beneath.
Juno's ultra-sensitive Stellar Reference Unit instrument snapped an image during a close flyby on September 29, 2022, when the spacecraft passed within just 220 miles of Europa's ice shell. It was one of the first high-resolution images of Europa since NASA's Galileo spacecraft passed by in 2000.Sign up for the Live Science daily newsletter nowGet the world’s most fascinating discoveries delivered straight to your inbox.
About 31 miles above"The Platypus" is a double ridge running east-west with possible stains around it. It's thought these stains could be deposits from plumes of saltwater rising up to the surface from Europa's ocean.
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