PITTSBURGH (KDKA) — A string of lights spotted over the sky in western Pennsylvania caught the attention of many people on Thursday night.

They were not UFOs. Instead, the lights were Starlink satellites launched by SpaceX. According to Florida Today, a SpaceX Falcon 9 rocket took 56 satellites to orbit on Thursday from Cape Canaveral.

Starlink is an internet service company owned by SpaceX and designed by Elon Musk to provide high-speed internet to remote places.

According to First Alert Meteorologist Ray Petelin, the SpaceX Starlink satellites should be visible again Friday evening.  

First Alert Meteorologist Ray Petelin said the satellites start 10 degrees above the western horizon at 9:37 p.m. and exit in the Eastern Sky 26 degrees above the horizon at 9:42 p.m.