SCIENCE: NASA's Light Show

SCIENCE: NASA's Light Show

It took the combined resources of NASA and the U.S. Air Force to stage the $250 million fireworks display, but they promise it will be well worth the price. During the next two weeks, a team of scientists is planning a dazzling light show as part of a project to study the earth's magnetic fields. Fourteen canisters containing barium and lithium will be released from a satellite orbiting as high as 20,000 miles above the earth, creating a display of luminous red, green and purple clouds over much of North and South America, the Atlantic and Western Europe. Scientists hope that...

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