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DPS 2012, Day 5: How to make asteroids crunchy on the outside and soft in the middle

Emily Lakdawalla • October 19, 2012 • 2

A summary of just one talk from the Division for Planetary Sciences meeting, by Lindy Elkins-Tanton, which provided a neat explanation for how asteroids can be melted and layered on the inside yet have a primitive-looking exterior.

Iapetus' peerless equatorial ridge

Emily Lakdawalla • February 22, 2012 • 2

A new paper in the Journal of Geophysical Research - Planets by Dombard, Cheng, McKinnon, and KayI claims to explain how Iapetus' equatorial ridge formed. Cool!

Bill Nye and people
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