Universe & space

Discovery of Surtur

5 January 2006

Surtur is a small irregular moon of Saturn, found in 2006 by a team of astronomers led by Scott Sheppard using the Subaru telescope on Mauna Kea. It is a retrograde moon, meaning it orbits in the opposite direction to the planet's rotation, and it belongs to the Norse group of Saturn's outer moons, which are named after figures from Norse mythology. It was given its name, that of the fire giant said to bring about the destruction of the world at Ragnarok, some years after its discovery. It is only a few kilometres wide and probably a fragment of a captured larger body.

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