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A 2010 Orionid meteor, seen over Western Ontario, Canada. A waxing gibbous moon shines brightly at the left side of the image. CREDIT: NASA courtesy of Meteor Physics Group, University of Western Ontario |
Tuesday evening, residents across Virginia Beach, Norfolk and Suffolk, Va., dialed 911 to report what sounded what a large explosion. Today, a NASA scientist explained that it might have been a meteor.
The area is home to several military bases, so residents are accustomed to loud sounds. This was out of the ordinary, though; several 911 callers reported a loud noise that rattled their screen doors and windows. One woman told the local television station, WAVY, that it felt like an earthquake.
That's not uncharacteristic for a sonic boom created by a meteor, said Joe Zawodny, a senior research scientist at NASA Langley Research Center.
"A sonic boom is pressure wave, and it mimics an explosion," Zawodny told Life's Little Mysteries, a sister site of SPACE.com. "They can be quite forceful, and can definitely rattle walls and windows."
Meteors come in different flavors. Some are iron meteorites, which melt and burn on their way down but remain intact, Zawodny said. The sound is most consistent with a golf ball- size rock of this nature traveling upward of 1,000 mph and leaving a trail of sonic booms as it flies across the sky, most likely quite close to the ground. [Video: Meteors from Halley's Comet]