File:GRB illustration Earth.jpg

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Summary

DescriptionGRB illustration Earth.jpg	English: Scientists say that a ten-second burst of gamma rays from a massive star explosion within 6,000 light years from Earth could have triggered a mass extinction hundreds of millions of years ago. In this artist's conception we see the gamma rays hitting the Earth's atmosphere. (The expanding shell is pictured as blue, but gamma rays are actually invisible.) The gamma rays initiate changes in the atmosphere that deplete ozone and create a brown smog of NO2. Русский: Представление художника о воздействии гамма-излучения от близкой (менее 6000 световых лет) вспышки сверхновой на атмосферу Земли. (Фронт ударной волны изображён в голубом цвете, хотя в реальности гамма-излучение не имеет цвета.) Оно разрушает озон и создаёт слой коричневого смога диоксида азота. Такое событие в прошлом гипотетически могло вызвать массовое вымирание.
Date	4 June 2005
Source	https://www.nasa.gov/vision/universe/starsgalaxies/gammaray_extinction.html
Author	NASA

Licensing

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	23:08, 9 February 2016		576 × 745 (65 KB)	Danyel3096	Transferred from en.wikipedia

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- Lampo gamma
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- Массовое вымирание