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Princess Turandot

(4,917 posts)
4. They're thought to possibly be some type of salt...
Wed Aug 26, 2015, 06:46 AM
Aug 2015

dissolved in water ice and darkened by radiation.

http://www.nasa.gov/press-release/nasa-research-reveals-europas-mystery-dark-material-could-be-sea-salt

NASA has a mission in development right now to survey Europa specifically, launching in the 2020's

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