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Astronomers Discover the Moon Has a Tail

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BOSTON, Mass., June 10 -- Boston University astronomers report the discovery of a new feature of the Earth's moon -- a sodium-gas tail over half a million miles long. Scientists stumbled across this discovery in November when a Boston University team pointed a sensitive camera in the opposite direction from the moon in an attempt to photograph the Leonid meteor storm. Instead, they found a patch of sodium emission in an otherwise moonless sky. It grew to be larger and brighter on November 19, and then faded slightly on November 20, said Steven Smith, a research associate in the...Read full article

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    Published: June 1999
    News & Features

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