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This is the first image ever captured of blue jet lightning. It was taken at Arecibo Observatory in Puerto Rico. A team of researchers at Arecibo captured video evidence from the ground of this lightning phenomenon known as blue jet. The discovery is the first ground-based evidence linking the ionosphere with cloud tops in blue jet events.
According to Victor Pasko of Penn State University, an electrical engineer working at Arecibo, pilots and others reported observations of red sprites and blue jets long before the first one was captured on video, and numerous undocumented reports of similar phenomena have appeared in scientific literature for over a century.Image credit: Victor Pasko, Penn State University
