January 10, 2005
Saturn's Seam?

Slashdot linked up notice that the Saturn probe Cassini has detected a really strange feature on that planet's moon, Iapetus. It appears that a gigantic ridge bisects the planet, exactly at its equator, with an average height approaching 12 miles. The article isn't clear if the ridge itself goes all the way around the planet, or if it's just found on the "dark" side. Oh, yeah, this is also the moon that has one side that's as black as tar, and another that's as white as snow. I'd ask "could it get any weirder?", but I think I already know the answer to that one.

Posted by scott at January 10, 2005 12:09 PM

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Well, if it bisects the equator like they say, and it's 1,300k long, then it'd roughly circle the moon as it's roughly 1,400k in diameter.

Aside from making the moon look like a walnut, having it reach 12 miles up - to compare with Olympus Mons is a crazy feat - and one that Amber and I'll place on our list of places to hike...

Posted by: ron on January 10, 2005 12:22 PM
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