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

The video explores the discovery of water vapor in Ganymede's atmosphere, the largest moon in our solar system. Initial observations using the Hubble Space Telescope revealed differences in auroral bands, initially attributed to atomic oxygen. However, 2018 data showed minimal atomic oxygen, suggesting sublimation of surface ice as the cause. This discovery enhances our understanding of the Jovian system and the formation of gas giant planets and their moons.

What is Ganymede and how does its size compare to other celestial bodies in the solar system?

Describe the significance of the ultraviolet images taken of Ganymede in 1998 and 2010.

What were the findings of the 2018 research regarding atomic oxygen in Ganymede's atmosphere?

Explain the process of sublimation as it relates to Ganymede's icy surface.

How does understanding Ganymede contribute to our knowledge of gas giant planets and their satellites?