No.1 : Hesdalen Light (Norway)
Source：atlasobscura
Since the 1980s, Norway’s Hesdalen Valley has been home to mysterious lights that appear in the sky. White, yellow, and red orbs zip around at incredible speeds—some clocked at over 18,000 mph—stop on a dime, or just hover in place.
Research teams have studied these lights for decades, but nobody has a clue what’s actually causing them. Some theories include plasma phenomena, unknown atmospheric electricity, or lights from underground geological activity. But none have solid proof.
What’s really wild is that these lights seem to move intelligently, almost like they know they’re being watched. People still report dozens of sightings every year, and there’s a 24/7 monitoring station streaming live data. It’s science’s ultimate unsolved mystery, happening right now.
