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Stunning lightning from above

Credit: NASA Earth Observatory
This stunning image of a lightning strike over Kuwait was captured last December by an astronaut aboard the International Space Station (ISS) and released…Read More »









today (March 24) by NASA's Earth Observatory. The ISS recently installed a new instrument to help study the physics and composition of such bolts in detail on a daily basis.

Lightning bolts flash across Earth's atmosphere as often as 50 times per second, which adds up to about 4.3 million times a day and 1.5 billion times a year, NASA officials wrote in an image description. Some of those strikes emit gamma radiation — a type of radiation more commonly associated with exploding stars and nuclear fusion — in bursts known as terrestrial gamma-ray flashes (TGFs). The scientists will use the new lightning imagery and data from the ISS to try to understand what triggers lightning during storms in general, and what causes these rarer bursts of TGFs. [Electric Earth: Stunning Images of Lightning]

[Full Story: Stunning Lightning Above Mideast Seen from Space (Photo)]   Less «
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