Astronomers say a loud explosion heard across a large swath of Nevada and California on Sunday morning was likely caused by a meteor. The explosion rattled windows and shook houses from Reno to Winnemucca in Nevada, and from the Sacramento to Bakersfield areas in California.Dan Ruby of the Fleischmann Planetarium at the University of Nevada, Reno, says the reports indicate the meteor broke up above Earth somewhere over the Sierra southwest of Reno.There were no reports of earthquakes at the time.



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