Traveling over west Africa at 8 kilometers per second in the International Space Station, astronaut Andr√© 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 Andr√© 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.]