Redditor big_mac_heart_attack Photographer David Barton snapped this extremely unusual weather event above the skies of Victoria, Australia. Apparently the unusual event is called a Fallstreak Hole (or commonly a ‘hole punch cloud’):
Such holes are formed when the water temperature in the clouds is below freezing but the water has not frozen yet due to the lack of ice nucleation (see supercooled water). When ice crystals do form it will set off a domino effect, due to the Bergeron process, causing the water droplets around the crystals to evaporate: this leaves a large, often circular, hole in the cloud.
Not unsurprisingly, Fallstreak Holes are one of the most common cloud-related events reported as UFOs. (via This Isn’t Happiness)
Do stories and artists like this matter to you? Become a Colossal Member and support independent arts publishing. Join a community of like-minded readers who are passionate about contemporary art, help support our interview series, gain access to partner discounts, and much more. Join now!