WDAY: The News Leader

Published December 04, 2012, 01:19 PM

Cosmic radio waves mimic chirping of 'alien birds'

CAPE CANAVERAL, Fla. (AP) — Twin spacecraft have captured the clearest sounds yet from Earth's radiation belts — and they mimic the chirping of birds.

By: MARCIA DUNN,AP Aerospace Writer, Associated Press

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