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April 18, 2015

The strangest moon in the Solar System

astrangemoon.jpeg
Cassini made many great discoveries about this planet, including the divisions between the rings and a number of Saturn’s moons.
In fact, the second of Saturn’s moons ever discovered, Iapetus, presented a tremendous mystery to Cassini. While it clearly orbited Saturn like the other moons, it was only visible during half its orbit, remaining completely invisible during the other half. As telescope technology improved, we discovered why: one half of Iapetus is only about one-fifth as bright as the other!
— Starts With A Bang! — Medium

Posted by gvanderleun at April 18, 2015 11:59 PM. This is an entry on the sideblog of American Digest: Check it out.

Your Say

"... one half (of Iapetus) is only about one-fifth as bright as the other! ..."

Sounds like a lot of people I see.

Posted by: chasmatic [TypeKey Profile Page] at April 20, 2015 6:21 AM

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