A fireball spotted streaking across the night skies above some western states on Tuesday turned out to be a Russian space rocket that was re-entering Earth's atmosphere.
The mysterious object was photographed by people in Arizona, California and Nevada early Tuesday evening.
According to NBC News , a U.S. defense official said the debris was being tracked and it entered the atmosphere somewhere over Arizona at about 9:08 p.m. Eastern. The rocket was reportedly launched on Monday .
See some of the initial social media posts about the fireball below.
— KTNV Action News (@KTNV) December 23, 2015
— Joe Bartels (@Joe_Bartels) December 23, 2015
— Poppa Bear (@BrandonOso20) December 23, 2015