UPDATE: Con Ed Tweaks Statement on Cause of Eerie Blue NYC Sky

A transformer fire in Queens sent an eerie blue light flooding the nighttime sky as electricity flickered in homes and an airport was plunged into darkness Thursday. Twitter/@Eat_Work_Run/via REUTERS

(Reuters) - A transformer explosion at an electric power station in the New York City borough of Queens on Thursday led police officials to warn people to avoid the area, after social media users posted images of a bright light on the horizon. The New York mayor’s spokesman insisted that the glowing lights were not aliens Craig Ruttle/AP

A small explosion at a power plant turned the sky over New York bright blue last night, causing airport disruption and prompting the mayor’s official spokesman to confirm that it was “not aliens”.
The New York City sky lights up in blue after a transformer in Astoria, Queens, explodes.