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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.
This is an image of the surface of Pluto.
Image from: NASA

Pluto's Surface and Interior

The surface of Pluto is made of two different parts. It has an icy part and a non-icy part (the non-icy part may be some sort of rock). The icy part on Pluto though isn't ice made out of water; it's ice made out of frozen nitrogen!

Pluto is so far away that is it very hard to see the planet, so we can't tell how much of the surface is covered with ice. It will take a mission to Pluto to sort some of these things out!

The interior of Pluto may also be made of ice and rock.

Last modified January 19, 2001 by Jennifer Bergman.

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