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Scientists who mapped one of the most enigmatic mountain ranges on Earth have given a first glimpse of their data.
 toread Antarctica mountains
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.

2010-12-16

 Iapetus Moon Saturn ridge ring equator geology mountains astronomy