The sky over southern California (and social media) lit up late last night when something streaked across the sky. 

Many people shared images of the out-of-the-ordinary event, speculating that it could be space junk or a meteor. 

According to FOX LA, officials at Nellis Air Force Base in southern Nevada first said it was a meteor breaking up. But this morning, U.S. Strategic Command announced that it was actually a Chinese rocket that re-entered the atmosphere.

Spokeswoman Julie Ziegenhorn declined to say whether the fireball from the Chinese CZ-7 rocket posed a danger to people on the ground. But she said the military often sees these re-entries.

She referred further questions to Chinese authorities. 

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