HUBBLE SPACE TELESCOPE FINDS FIRST EVIDENCE OF WATER VAPOUR ON GANYMEDE

  • 27/07/2021

For the first time, Astronomers have uncovered the first evidence of water vapour in the atmosphere of Jupiter's moon Ganymede by using new and archival datasets from NASA's Hubble Space Telescope. This water vapour forms when ice from the moon's surface sublimates -- that is, turns from solid to gas. According to the study published in the journal Nature Astronomy on Monday, water vapour forms when ice from the moon's surface turns from solid to gas.

The finding adds anticipation to European Space Agency (ESA)''s upcoming mission JUpiter ICy moons Explorer (JUICE).
Planned for launch in 2022 and arrival at Jupiter in 2029, JUICE will spend at least three years making detailed observations of Jupiter and three of its largest moons, with particular emphasis on Ganymede as a planetary body and potential habitat.

The Hubble Space Telescope is a project of international cooperation between NASA and ESA (European Space Agency). NASA's Goddard Space Flight Center in Greenbelt, Maryland, manages the telescope. The Space Telescope Science Institute (STScI) in Baltimore, Maryland, conducts Hubble science operations. STScI is operated for NASA by the Association of Universities for Research in Astronomy in Washington, D.C.

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