The sky over New York City turned a spooky bright blue Thursday night, leading many residents to believe they were under attack by an alien invasion.

At about 9:20 p.m., smoke filled the sky over Astoria, Queens for three minutes.

A possible transformer explosion in Queens has turned the skies over NYC a bright blue. Stay with @ABC7NY for the very latest. pic.twitter.com/ShtHHQoiuf

— Ryan Field (@RyanFieldABC)

A bright light flashed a mysterious morse code, prompting some residents to wonder if the city was under attack.

“It was pitch black outside and then suddenly the whole side of the eastern sky was lighting up and changing colors,” Upper West Side resident Madeleine Frank Reeves told the News Observer. “It lasted a couple of minutes.”

Many people’s first inclination was that it was the work of our inevitable alien invasion.

Is this an alien invasion? pic.twitter.com/ED4G94tQYo

— Emily C. Singer (@CahnEmily)

Other people took a more positive approach, believing perhaps that the city’s outer boroughs had turned into a nightclub.

I’m sure there’s a wonderful explanation for this… Buuuut the east of the city turned into a night club for a decent amount of time… pic.twitter.com/TnAdleoPna

— Shaun Latham (@ShaunLatham)

Someone questioned whether or not the bright blue flash was a gender reveal gone horribly awry.

Astoria got one of the craziest gender reveals #queens pic.twitter.com/05HDEGJBQn

— Jasmine (@jusmeenn)

Some noticed the light’s uncanny resemblance to the attack on New York in the “Ghostbusters” movie.

Gozer the Gozarian making its appearance. Be on the lookout for a giant walking marshmallow man. #ghostbusters https://t.co/PW4fWEVVnG

— NickLoffer (@NickLoffer1)

The New York sky tonight confirming there is no Dana only Zuul #ghostbusters pic.twitter.com/ceEu6m9ATa

— Joe Auriemma (@JosephAuriemma)

Electrical company Con Edison quickly released a notice that the mysterious blue flash was the result of “a brief electrical fire at our substation in Astoria which involved some electrical transformers and caused a transmission dip in the area.”

Despite Con Ed’s reasonable explanation, some people weren’t having it.

Explosion my ass, that’s aliens

pic.twitter.com/SzbqVwGOiB

— Joey Langone (@JoeyLangone)

Even the New York Police Department had to clear up that the blue light was not the result of “extraterrestrial activity.”

Confirming incident in #Astoria was result of transformer explosion. No injuries, no fire, no evidence of extraterrestrial activity. Please continue to follow @FDNY and @Conedison

— NYPD NEWS (@NYPDnews)

The blue light was visible throughout the city, but was most acutely felt in Queens, where it appeared briefly to be daytime.

Bright blue light piercing the Manhattan sky during a transformer explosion in Queens. Here’s what it looked from Washington Square Park. #nyc pic.twitter.com/TPRcX5LdTd

— Jenny Brockie (@JenBrockie)

Apparently this is a fire at the Astoria Power plant – as seen from Jersey City. Hope everyone is ok! #nyc #queens #newyork #bluelight #bluelights #aliens #astoria #powerplant #fire #blackout⁠ ⁠ #newyorkcity #besafe #electrical pic.twitter.com/D7XZZDZyEA

— Simone Bachmann (@viking_gal)

The power outage affected nearby LaGuardia Airport. The airport was forced to issue a one-hour ground stop during one of the busiest travel weeks of the year.

Authorities reported that no one was injured in the explosion. Con Edison reported later that evening that all power lines in the area were in service and that the power system was stable.

There was a brief electrical fire at our substation on 20th Avenue & 32nd Street in Astoria this evening, which caused a transmission dip in the area. All power lines serving the area are in service and the system is stable. Photo: Michael Friedl, New York Times pic.twitter.com/vq2Ao46rhk

— Con Edison (@ConEdison)

New York City is safe from an alien invasion for another day — or perhaps that’s just what they want you to think…

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