EDUCATION: Catch Some Rays

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Science  16 Dec 2005:
Vol. 310, Issue 5755, pp. 1747
DOI: 10.1126/science.310.5755.1747b

Cosmic rays spew from the sun, hurtle out of the remains of supernovas, and escape from other extraterrestrial sources. The speeding space particles, which constantly pelt Earth, interest astronomers studying questions such as the composition of the galaxy. NASA's Cosmicopia explains cosmic rays and related topics such as space weather for students and the public. Subjects include Earth's magnetosphere, the magnetic cloak around the planet that rebuffs many cosmic rays. The site also offers a Q&A written by experts, a timeline of ray research, and links to news stories.

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