From The Weather Channel:
Arizona stargazers were baffled Thursday morning by a mysterious bright flash that lit up the night sky.
Shocked residents uploaded video of the fireball to social media and hundreds of tweets buzzed with speculation over the origin of the unidentified space object.
Additionally, some locals heard a loud boom and even reported feeling the ground shake, according to Phoenix affiliate ABC 15, though the Arizona Geological Survey didn’t pick up any readings of seismic activity.
UPDATE (From USA Today):
PHOENIX — The boom and flash of light that broke the predawn quiet and lit up the sky early Thursday, was a small asteroid, about 10 feet in diameter, that entered the Earth’s atmosphere above Arizona, according to NASA officials.
Scientists estimated that the object was moving at more than 40,000 mph when it sped across the Arizona sky shortly before 4 a.m.
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