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How stratospheric life is teaching us about the possibility of extreme life on other worlds 5nvklj





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How stratospheric life is teaching us about the possibility of extreme life on other worlds

Dragon
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Post by Dragon Sun May 27, 2018 1:57 pm

The presence of microbial life in Earth's stratosphere is not only opening up a new arena in which to study extremophiles, but is increasing the range of possible environments in which we may find life on other planets. This is the conclusion of a new study that summarizes what we know about stratospheric life so far.

The stratosphere is the atmospheric zone that lies directly above the dynamic troposphere where we live, but it is mostly a mystery when it comes to the life that exists there.

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How stratospheric life is teaching us about the possibility of extreme life on other worlds 334pu7m
Dragon
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Post by Dragon Sun May 27, 2018 1:58 pm

How stratospheric life is teaching us about the possibility of extreme life on other worlds Howstratosph
Credit: NASA

The space shuttle Endeavour hangs against Earth’s atmosphere. The stratosphere is represented by the whitish layer.

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How stratospheric life is teaching us about the possibility of extreme life on other worlds 334pu7m
Dragon
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Post by Dragon Sun May 27, 2018 2:00 pm

How stratospheric life is teaching us about the possibility of extreme life on other worlds 1-howstratosph
Credit: NASA Goddard

A stratosphere has been identified by the Hubble Space Telescope on the exoplanet WASP-33b, among others. Could life exist in alien stratospheres?

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How stratospheric life is teaching us about the possibility of extreme life on other worlds 334pu7m
Dragon
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How stratospheric life is teaching us about the possibility of extreme life on other worlds Empty Re: How stratospheric life is teaching us about the possibility of extreme life on other worlds

Post by Dragon Sun May 27, 2018 2:01 pm



WASP-33b, an exoplanet 4 1/2 times more massive that Jupiter, has a layer in its atmosphere that absorbs ultraviolet radiation, preventing UV from reaching the surface.

Earth has a similar stratospheric UV filter.


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