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Hubble Finds First Evidence of Water Vapor at Jupiter’s Moon Ganymede

26 Jul 2021, 15:00 UTC
Hubble Finds First Evidence of Water Vapor at Jupiter’s Moon Ganymede NASA, ESA, John Spencer (SwRI Boulder)

For the first time, astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter's moon Ganymede. This water vapor forms when ice from the moon's surface sublimates -- that is, turns from solid to gas.

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