Birdwatch Note Rating
2023-01-21 17:52:46 UTC - HELPFUL
Rated by Participant: F69F2549B58ACD296B2457D21D2B400BCD1B183A912EFC99369BA3AD3C17DDB0
Participant Details
Original Note:
Evidence for a subsurface ocean in Ganymede has been known since the 1970s based on orbital properties. More evidence was found in the 1990s by the Galileo mission and in 2015 by Hubble. The linked article refers to a 2021 observation of water vapor in in atmosphere. https://solarsystem.nasa.gov/moons/jupiter-moons/ganymede/in-depth/ https://www.nytimes.com/2015/03/13/science/space/suddenly-it-seems-water-is-everywhere-in-solar-system.html https://www.nasa.gov/feature/goddard/2021/hubble-finds-first-evidence-of-water-vapor-at-jupiter-s-moon-ganymede/
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