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Hubble finds water vapor around Jupiter’s moon Ganymede

The Hubble Space Technology has found water vapor around Jupiter’s moon Ganymede.

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The Hubble Space Technology has found water vapor around Jupiter’s moon Ganymede.

Jupiter is the largest planet in the solar system and water vapors have been found on the surface of its moon. The water vapor forms as the icy surface of the moon turn from a solid to a gas, a process called sublimation. Astronomers uncovered this water vapor while using a combination of new and archival observations from Hubble.

Ganymede on the other hand is the ninth-largest object in the solar system. But it is cold and has a frozen water ice sheet.

In addition to being the largest natural satellite in our solar system, Ganymede is also the only moon to have a magnetic field. This causes auroras to glow around the moon’s north and south poles.

Ganymede’s surface temperature can vary significantly over a day. It becomes warm in the noon and releases small water molecules. Even though Ganymede’s ice shell is as hard as a rock, a stream of charged particles from the sun is enough to erode and release water vapor.

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