Los relámpagos desatan por encima rayos gamma y 'elfos' ultravioletas

Thu 12 Dec 2019, 13:08


Utilizando instrumentos a bordo de la Estación Espacial Internacional, los investigadores han observado pulsos de milisegundos de rayos gamma producidos por tormentas eléctricas. Esta detección aclara el proceso mediante el cual se producen estos destellos y descubren que pueden producir una emisión ultravioleta conocida como 'elfo'.

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La Universitat colidera una investigación espacial que demuestra la correlación entre dos tipos de fenómenos atmosféricos violentos

Thu 12 Dec 2019, 13:03


Una investigación internacional en la que participa la Universitat de València (UV) ha demostrado al nivel de los milisegundos la correlación entre el estallido gamma de alta energía y el desarrollo de tormentas eléctricas. Se trata de dos fenómenos atmosféricos violentos observados desde la Estación Espacial Internacional (ISS) y en los que por primera vez se ha captado la emisión ultravioleta. El artículo se ha publicado en la revista Science.

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Arstechnica | Data from the International Space Station confirms: Lightning is insane

Thu 12 Dec 2019, 13:01


Lightning is such a common phenomenon that people often overlook just how powerful it is (provided it doesn't hit you, obviously). But over the past decade, research has gradually revealed just how extreme lightning is. This everyday phenomenon is powerful enough to produce antimatter and transform atoms, leaving a radioactive cloud in its wake. Understanding how all of this happens, however, is a real challenge, given just how quickly multiple high-energy events take place.

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ISS Sees Thunderstorm Beaming Electromagnetic Pulse Into Area, Producing Gamma Rays and ‘Elves´'

Thu 12 Dec 2019, 12:56


At 8:01 p.m. on October 10, 2018, a bolt of lightning flashed within a storm cloud simply east of the Indonesian island of Sulawesi. The Worldwide Area Station was passing overhead on the time, and a collection of devices noticed because the bolt produced a flash of gamma radiation—and, concurrently, emitted a glowing ring of ultraviolet and visual gentle within the topmost layer of the environment.

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High above the storm clouds, lightning powers gamma-ray flashes and ultraviolet ‘elves‘

Thu 12 Dec 2019, 12:52


Using instruments onboard the International Space Station, researchers have observed millisecond pulses of gamma-rays produced by thunderstorms, clarifying the process by which these flashes are made, and discovering that they can produce an ultraviolet emission known as an "Elve."

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DTU-forskere afdækker Klodens ekstreme energiudladninger

Wed 11 Dec 2019, 14:58


Nu er der nyt fra Danmarks store rummission ASIM, som blev sendt i rummet i fjor, hvor DTU Space er videnskabelig leder. Forskerne kan nu forklare mere om de voldsomme fænomener, der opstår i forbindelse med tordenvejr over skyerne. Den nye viden er netop publiceret i det videnskabelige tidsskrift Science.

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Scientists unveil new discoveries about Gamma-ray flashes coming from thunderstorms

Wed 11 Dec 2019, 14:44


SAN FRANCISCO—A slew of new discoveries about the mysterious gamma ray flashes that come from Earth’s thunderclouds are being unveiled in presentations at AGU’s 2019 Fall Meeting and in three new studies being published today.

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ASIM data becomes available for lightning researchers

Wed 11 Dec 2019, 10:53


Data on lightning phenomena in Space near Earth captured by the Danish Atmosphere-Space Interactions Monitor (ASIM), on board the International Space Station (ISS), have now been made available to researchers across the globe.

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Hans Christian Ørsted Research Award 2019 goes to DTU space scientist

Tue 20 Aug 2019, 10:41


Lightning scientist Torsten Neubert receives the Hans Christian Ørsted Research Award for his contribution to an understanding of how giant lightning bolts are created in space.

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Space-station cameras reveal how thunderstorms trigger gamma-ray bursts

Wed 17 Jul 2019, 15:54


Nature article: Mysterious electrical flashes above storm clouds have long puzzled scientists. “This is a game changer,” says Nikolai Østgaard, a space physicist at the University of Bergen in Norway. He described the findings in a pair of talks at the International Union of Geodesy and Geophysics meeting in Montreal, Canada, on 9 and 12 July. Picture: NASA/JSC

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