Mysterious flashes of light seen in swamps and bogs could be caused by burning methane or other gases, ignited by sparks that fly between bubbles in water
Več na: https://www.newscientist.com/article/2498087-we-may-finally-know-what-causes-will-o-the-wisps/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
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