Science and the future

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The 16112020 at 5:56 p.m.

Tonight, at 2h52, the French Taranis satellite will be launched, who will study the very short light phenomena that are triggered in the upper atmosphere during thunderstorms, and the phenomena in which scientists baptized the elves, Leprosy, silphs and statues, Etc Live video starts at 8 p.m.

Since four years, French satellite studies the phenomena of ultra-short light that occur in the upper atmosphere during thunderstorms

Elfes, silhouettes, jinn, statues, gobelins (“sprites”) and jets These names from wonderful myths are those that scientists attribute to transient eruptions whose origin is still mysterious. First observed by civilian and military pilots, they were taken for hallucinations and then the first pictures were taken in the years 1990, especially from the American space shuttle. Flashes of red or blue light propagate during thunderstorms from the tops of these clouds ​​up to a height of 90 km. They can take the form of thousands of rings stretching in a fraction of a second for hundreds of kilometers for the elves. On top of the clouds ​​Storms can also scatter blue jets vertically up to 50 km d’altitude, see 90 km for giant jets

These very short phenomena are generally invisible to the naked eye, because many tropical observatories have recently discovered that thunderstorms also often produce high-energy X-ray and gamma-ray bursts, because thunderstorms act as particle accelerators All these phenomena are observed in all regions of the world for about 300 000 lightning events that strike the Earth every year.

«Hence the need to assess their impact on the upper atmosphere to complement our climate and meteorological models in particular», note Christophe Bastien Terry, project manager at the National Center for Space Studies (Cnes).

It is the target of the French satellite Taranis, named after the god of the sky and the storm in Celtic Gallic myths, to be launched tonight at 2:52 a.m. from the Coro Space Center in French Guiana. This basic physics satellite requires the size of a washing machine. Ten years of development and an investment of 110 million euros by CNES Once stationed in its sun-synchronous orbit at 650 km d’altitude, it will have eight different instruments all working simultaneously and simultaneously for each event discovered. This will be possible thanks to the Mexican computer, which will act as the brain of Taranis, managing the tool's launch strategy during the event and ensuring the transfer of 4 gigabytes of data per day in the four-year-old collective memory

Thunder storm
X-rays
National Center for Space Studies (CNES)
Taranes

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TARANIS, Thunderstorm, CNES, Vega

News – FR – Follow the launch of Taranis, elf satellite hunter, elves, de sylphes, goblins live

Source: https://www.sciencesetavenir.fr/espace/systeme-solaire/lancement-de-taranis-le-satellite-chasseur-d-elfes-farfadets-sylphes-lutins_149195

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