Astronomers confirm orbit of tiny moon Hippocamp via multiple images from Hubble

A miniature moon that whizzes around Neptune at breakneck speed has been tracked by astronomers working from the US.

The speck of a moon, no more than 21 miles across, hurtles around the distant gas giant at about 20,000 miles an hour, 10 times faster than our own moon circles Earth, scientists said.

Related: Israel to launch first privately funded moon mission

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from Top stories | The Guardian https://ift.tt/2DVWMHP

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