That said, these bright flashes are not always an immediate ... shapes, quick pops, spots or white fuzz without a light ...

The constant, rapid-fire display includes seconds-long short flashes and longer, blindingly bright flares of light on a daily ...

NASA astronaut Don Pettit captured breathtaking video of a rare atmospheric phenomenon from his perch high above Earth on the International Space Station.

These are bright, colorful flashes of light faster than lightning and are sometimes referred to as "sprites." Pettit was able to view the sprites from directly above, looking down at what is known ...