Traveling over west Africa at 8 kilometers per second in the International Space Station, astronaut André Kuipers took this eerie and lovely picture of a storm cloud just as it was illuminated by a lightning stroke:
[Click to enlighten yourself.] Wow. This is easily as cool as another amazing shot of a lightning-illuminated cloud over Brazil taken from space in 2011, too. And hmmmm. Scientists have detected gamma rays -- extremely high-energy light -- presumably generated by lightning storms and shooting straight up into space. I hope nothing makes André stressed any time soon. The ISS is no place for him to Hulk out! [P.S. Before anyone asks -- and as much as I hate to explain a joke, I guess I really should in this case -- the gamma rays emitted by lightning storms are extremely weak, and not a danger to the astronauts.]Credit: ESA/NASA
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