but some lightning goes upward, forming blue jets and gigantic jets. Perhaps the most dangerous lightning appears as "bolts from the blue" -- lightning that begins upward, but then moves sideways ...

“According to the researchers, this is the first time they’ve ever seen this blue lightning shoot up like that,” Mogensen said. The video also shows a spidery tangle of red sprites flashing ...

Lightning goes three ways – between clouds, from cloud to ground, or from ground to cloud. Yes, it is. What happens is this: A so-called bolt out of the blue (lightning on a clear, blue sky day ...