Military officials could not explain what appeared to be a missile launch that occurred Monday evening over the ocean, approximately 35 miles west of Los Angeles.

Neither could aerospace officials for that matter, but the Pentagon told reporters that they had their own theory about the white streak of fluff that appeared in the sky.

The Pentagon told reporters that they believe the strange streaks in the sky are nothing more than contrails from airplanes. This is not the first time such an event has occurred and was later rendered to be only an airplane. A similar event took place last year on New Year’s Eve, also in California.

Some meteorologists agree, as well as officials from Boeing. The website, ContrailScience.com also agrees, believing that they were simply contrails seen from strange angles in both cases.

The Missile Defense Agency has stated that there were no test launches scheduled for Monday but believes that the event does not pose any sort of threat.