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europa is an ice-covered moon long

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suspected to have an ocean under the ice

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but hubble detected actually episodic

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plumes of water vapor being ejected from

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between cracks in the ice of europa

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that's something that we can glean by

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having a telescope that can look at

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things in the solar system over time

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and see changes and dynamics that gives

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us information that we would never get

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by just one single snapshot

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so because hubble is above the earth's

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atmosphere we can actually see details

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on planets in our solar system and

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beyond that would be difficult or

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impossible to see from the ground