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image credit & copyright: Vincent Brady



what's happening in the sky ?

unusual lights appear to hover above Whitefish Bay on the eastern edge of Lake Superior between the USA and Canada

unsure of the cause, the Michigan-based astrophotographer switched camera lenses -- from fisheye to telephoto -- and soon realized he was seeing light pillars: vertical lines of light over a ground source that reflect from falling ice crystals

as the ground temperature was above freezing, the flat crystals likely melted as they approached the ground, creating a lower end to the vertical light pillars

the red ground lights originated from wind turbines on Ile Parisienne, a Canadian Island visible across the bay




































in apod.nasa.gov/apod