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Photo: Yrii Kurygin (Shutterstock) Though it sounds like some type of superhero—specifically the unlicensed off-brand kind that hangs in Times Square—the “green flash” is actually a real thing that you can see in the sky with your own eyes. And while we know the green flash exists (there is plenty of photographic evidence ), it has reached more of a mythical status because it’s not something seen on a regular basis. Unlike certain meteor showers or moons, you can’t mark your calendar to see the green flash: it just has to happen. But, there are ways to improve your chances of catching a glimpse at the elusive natural light show. Here’s what to know. What is the green flash, exactly? The first thing to know is that while there are several natural phenomena lumped together and referred to as “the green flash,” most fall into one of two forms, both of which were identified by English physicist James Prescott Joule in 1869. The first form is what Joule referred to as the “last glimpse” and is a bluish-green flash that appears at the last moment before the sun dips below the horizon. The second form is associated with a mock mirage and is mainly seen from elevated positions, according to Andrew T. Young, an astronomer, green flash expert and professor at San Diego State University . (If you want to learn more about the green flash, Young maintains a website full of information and links to photos.) How to […]