Mysterious blue lights observed over Lapland at the weekend were revealed to be the result of a science experiment to study the solar wind, according to NASA.
Strange blue lights' spotted over Arctic Circle explained by Nasa, The Independent
UFO mystery over the Arctic Circle; Is the Pentagon hiding something?
NASA says mysterious dancing blue lights spotted over Arctic were caused by vapor tests, NOT aliens
What is that?' Strange line of lights in sky mystifies people across Triangle
Strange Blue Lights' Seen Over Arctic Circle Were Not Aliens, Says NASA
How do we draw alien planets?
UFOs are real, government says; NW Ohio a hotbed of 'visitations
Hundreds more UFO sightings included in latest report - CBS News
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