Daniel N. Baker

Mar. 01, 2013

A Natural Particle Accelerator, Far Above the Planet

Closer study of the Van Allen radiation belts above Earth is providing new questions for science.

van allen belts, radiation, space weather, accelerated electrons, solar wind

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Michael Pollan Talks Plants and Food

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Picture of the Week: The Sun

Photographer Alan Friedman documents the sun’s many faces using telescopes, filters, cameras, and computer software.

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