Wednesday, May 2, 2012

APOD 4.6

This is a picture of one of Saturn's sixty-two moons. This moon is Helene, and this picture was taken by the Cassini spacecraft as it orbited Saturn and reached a distance of only the Earth's atmosphere from Helene. This image has spectacular clarity and will help scientists learn more about the Helene. It could give insight into why the moon appears smooth and streaked as opposed to rough and cratered like our Moon. Helene is also an unusual moon because it orbits Saturn just before Dione, a larger moon, making it one of only four known Saturnian moons to occupy a Lagrange point.

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