Earlier this month, some mysterious blue lights appeared over the Arctic, sparking fears amongst conspiracy theorists of an alien invasion.
Several videos and images of the mysterious lights appeared on Twitter , with some claiming they were a UFO light show.
Thankfully, NASA has now revealed that it, and not aliens, was behind the lights.
The colourful lights were the result of chemicals released into the sky by a pair of NASA rockets.
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NASA launched the rockets from Finland, as part of its Auroral Zone Upwelling Rocket Experiment (AZURE), which aims to shed new light on the Northern LIghts.
NASA explained: “The AZURE mission is designed to make measurements of the atmospheric density and temperature with instruments on the rockets and deploying visible gas tracers, trimethyl aluminum (TMA) and a barium/strontium mixture, which ionizes when exposed to sunlight.
“The vapours were released over the Norwegian Sea at 71 through 150 miles altitude.
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“These mixtures, using substances similar to those found in fireworks, created colourful clouds that allow researchers to track the flow of neutral and charged particles with the auroral wind.”
Despite this fairly simple explanation, conspiracy theorists were quick to claim the lights were really aliens.
Scott C. Waring, who runs UFO Sightings Daily, said: “This is not a typical alien visit to an underground base that we are seeing here.
“What you see is an important delegation party of representatives of high status in their culture...very possibly of royal blood.”
