Bright lights lit up Pacific Northwest skies Thursday night, but they weren’t a string of slow-motion falling stars or meteors. They were the burning remnants of rocket bits finally dropping back into Earth’s atmosphere, according to the National Weather Service in Seattle.

“The widely reported bright objects in the sky were debris from a Falcon 9 rocket 2nd stage that did not successfully have a deorbit burn,” the service said in a tweet, citing preliminary information about the astral occurrence that was seen shortly after 9 p.m., causing an immediate stir on social media.

There were no expected impacts on the ground.

The SpaceX Falcon 9 rocket was delivering Starlink satellites, built in Redmond, into orbit earlier this week.

SpaceX rocket junk streaked spectacularly across the Pacific Northwest sky. Here’s the science behind the extraordinary show