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SpaceX launched its final rocket of the year on Friday, which put on a spectacular show as it streaked across the night sky in Southern California. But not everyone in L.A. got the memo about the rocket launch. Some thought it was aliens. Or worse.

Social media users posted pictures of the rockets and speculated about what the lights in the sky could be – with opinions ranging from aliens to fairy godparents to Santa.

Even as news that the lights were really a SpaceX launch spread, some still weren’t convinced. Twitter users speculated the explanation was a government cover-up.

A SpaceX Falcon 9 rocket launched from Vandenberg Air Force Base carrying 10 Iridium voice and data relay satellites was seen throughout Southern California on Dec. 22, 2017 (Danny Johnson via Reuters)
A SpaceX Falcon 9 rocket launched from Vandenberg Air Force Base carrying 10 Iridium voice and data relay satellites was seen throughout Southern California on Dec. 22, 2017
Danny Johnson via Reuters

SpaceX founder and CEO Elon Musk also let himself have fun with the conspiracy theories and played along with the idea that aliens were lighting up the skies.

Musk even implied the rocket was a “nuclear alien UFO from North Korea.”

A SpaceX Falcon 9 rocket launched from Vandenberg Air Force Base carrying 10 Iridium voice and data relay satellites was seen throughout Southern California on Dec. 22, 2017 (Mike Eliason—Santa Barbara County Fire Dept/Reuters)
A SpaceX Falcon 9 rocket launched from Vandenberg Air Force Base carrying 10 Iridium voice and data relay satellites was seen throughout Southern California on Dec. 22, 2017
Mike Eliason—Santa Barbara County Fire Dept/Reuters

Musk also announced on Twitter that he was planning another launch for January.

The next rocket will fire from Vandenberg Air Force Base in Santa Barbara County – another chance for pyrotechnics over Southern California.

Or, you know, aliens.

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