Thanks for the post. Heard about this when the news broke out, but hadn't had a chance to follow-up. The things we keep learning about our own backyard.
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Iapetus moon's mighty ridge stirs debate
16 December 2010 Last updated at 11:38
By Jonathan Amos
Science correspondent, BBC News, San Francisco
The mountainous ridge that circles the equator on the Saturnian moon Iapetus is both weird and spectacular.
Discovered in 2004, the icy rim is as much as 20km high and runs fully 1,600km from end to end.
No explanation for its existence has yet won total support; it is a puzzle.
Dr Andrew Dombard and colleagues have now made a compelling case for the ridge being the remains of a huge ring of debris that once orbited Iapetus but which eventually fell on to the moon.
READ MORE: BBC News - Iapetus moon's mighty ridge stirs debate
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Thanks for the post. Heard about this when the news broke out, but hadn't had a chance to follow-up. The things we keep learning about our own backyard.
O-Qua Tangin Wann
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