Hubble Finds Water Vapor in Ganymede’s Atmosphere⠀ ⠀ Using both archival and recent spectrographic data taken by the Hubble Space Telescope, scientists have discovered water vapor in the atmosphere of Jupiter’s moon Ganymede.⠀ ⠀ Ganymede is an icy moon. It’s the ninth-largest object in our solar system. It possibly has more water than all of the oceans here on Earth, although those oceans are subsurface. Very subsurface. 160 kilometers subsurface. But all that liquid water means Ganymede’s oceans could be habitable, just like Europa’s might be. And we’re definitely rooting for Ganymede as a place for potential life.⠀ ⠀ Read my full story here: buff.ly/3l6WViR⠀ ⠀ IMAGE: This image presents Jupiter’s moon Ganymede as seen by the NASA/ESA Hubble Space Telescope in 1996. Located over 600 million kilometers away, Hubble can follow changes on the moon and reveal other characteristics at ultraviolet and near-infrared wavelengths. Astronomers have now used archival datasets from Hubble...