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News stories tagged with "earth-science"

1980 eruption of Mt. St. Helens in Washington. Photo: <a href="http://en.wikipedia.org/wiki/File:MSH80_eruption_mount_st_helens_05-18-80-dramatic-edit.jpg">USGS</a>
1980 eruption of Mt. St. Helens in Washington. Photo: USGS

Natural Selections: Predicting Volcanos

Database analysis shows that winter, in addition to its other woes, is volcano season. Martha Foley wonders why. Dr. Curt Stager points the finger at the Pacific Ocean, which piles water on the North American coast and lightens the load on Asia. The stress comes out it crustal acne.  Go to full article

Natural Selections: Why is the sky blue?

Martha Foley poses the classic child's question. According to Dr. Curt Stager, the answer lies in the composition of the atmosphere, and in the refractive qualities of different wavelengths of light.  Go to full article

Narural Selections: Meteors

What can you tell about meteors from how they look? Find out what they're made of with Martha Foley and Dr. Curt Stager.  Go to full article

Natural Selections: Gemstones

What is it about diamonds and other jewels that make them so special? Martha Foley and Dr. Curt Stager talk about gemstones.  Go to full article

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