Worlds in Collision

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Language: English

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Ed lowered an eyelid. "You know how long it takes, Wilma, we've been up here enough times. If the light from a quasar is varying rapidly, say in the order of seconds, then the region that generated this light can only be light seconds or light minutes wide, so we are really looking at very small structures indirectly," he says. Credit: NASA Our most popular annual event, Star Gazing is presented in partnership with Lake Erie Nature & Science Center Schuele Planetarium and the Cuyahoga Astronomical Association.

Pages: 0

Publisher: Abacus; First Thus edition (1973)

ISBN: 0349135711

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