Space
Moons can have moons and they are called moonmoons
If a moon is big enough and far enough from its planet, it can host its own smaller moon, called a 鈥榤oonmoon鈥� - and four worlds in our solar system fit the bill
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Space
Jupiter鈥檚 moon Europa may have a belt of 15-metre-tall ice spikes
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Space
First known exomoon could be a baffling monster the size of Neptune
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Space
Why a rake on the moon messed up our theories of life on Earth
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Space
Mystery cold spot on Jupiter’s moon Europa could be ‘almost anything’
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Space
We could find life on Europa by just scratching its surface
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Space
Spectacular new photos of Titan show Saturn’s moon like never before
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Space
We鈥檝e found 12 new moons orbiting Jupiter 鈥� and one is probably doomed
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Space
Enceladus is spewing out organic molecules necessary for life
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Environment
A day used to be less than 19 hours long 1.4 billion years ago
The moon is making days on Earth last longer and longer, and we can track the changes through climate effects seen in the geological record
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Space
Why Saturn’s inner moons look like ravioli, cigars and potatoes
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Space
Falling mini-moons may have created Earth鈥檚 first continents
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Space
Probe saw plumes on Europa 20 years ago – we just didn’t notice
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Space
Young Saturn gave Jupiter the building blocks for its big moons
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