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Big Trilobites in the Sky

These holes look like big trilobites in the sky, or maybe they could be called “skylobites.” This picture of failstreak holes over Florida was posted by redditor deadhalo. They are sometimes attributed to UFOs, but there’s a perfectly logical explanation from meteorology.  

Failstreak holes are the beginning of ice formations in clouds. The temperature can be very cold before water vapor turns to ice. When ice crystals begin to form, the crystallization spreads outward in a domino effect. Meanwhile, water surrounding the ice crystals evaporates, leaving a big hole.  

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