Frontier Channel

News and commentary about the Great Frontiers

ISS007-E-10807 (21 July 2003) --- This view of Earth's horizon as the sunsets over the Pacific Ocean was taken by an Expedition 7 crewmember onboard the International Space Station (ISS). Anvil tops of thunderclouds are also visible. Credit: Earth Science and Remote Sensing Unit, NASA Johnson Space Center

Image Credit: ISS007-E-10807 (21 July 2003) – Earth Science and Remote Sensing Unit, NASA Johnson Space Center

A Tour of the Moons of Saturn – Prometheus

Richard Leis

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Published.

Prometheus is another shepherd moon of Saturn’s F ring. The gravitational tug of shepherd moons and their often eccentric orbits help shape unique structures in Saturn’s rings.

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