Neptune's smallest moon may have been created by comets

We're all made of star stuff, but some things in the universe are created by comets.

Neptune's recently discovered and smallest moon, Hippocamp, has been confirmed and observed in detail by the Hubble Space Telescope according to new research published in Nature on Wednesday.

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Named Hippocamp for the half-horse, half-fish creature from Greek mythology — all of Neptune's moons are named for Greek and Roman mythological figures — it's the smallest of the planet's seven inner moons, with a diameter of approximately 20-21 miles (34 kilometres). 

How have we never met Hippocamp before? The planet's other six small inner moons were picked up in a 1989 fly-by from the Voyager 2 spacecraft, but Hippocamp was missed.  Read more...

More about Nasa, Comets, Moon, Hubble Space Telescope, and Neptune

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