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Earth-like biospheres on other planets may be rare 5nvklj





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Earth-like biospheres on other planets may be rare

Dragon
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Earth-like biospheres on other planets may be rare Empty Earth-like biospheres on other planets may be rare

Post by Dragon Thu Jun 24, 2021 3:45 am

A new analysis of known exoplanets has revealed that Earth-like conditions on potentially habitable planets may be much rarer than previously thought.

The work focuses on the conditions required for oxygen-based photosynthesis to develop on a planet, which would enable complex biospheres of the type found on Earth.

The number of confirmed planets in our own Milky Way galaxy now numbers into the thousands.

However planets that are both Earth-like and in the habitable zone—the region around a star where the temperature is just right for liquid water to exist on the surface—are much less common.


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Earth-like biospheres on other planets may be rare 334pu7m
Dragon
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Post by Dragon Thu Jun 24, 2021 3:48 am



Every star has a habitable zone, but where that zone lies is different for stars of different sizes and brightness.


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Earth-like biospheres on other planets may be rare 334pu7m
Dragon
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Post by Dragon Thu Jun 24, 2021 3:49 am



NASA discovers 7 Earth-sized planets, 3 in habitable zone


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Earth-like biospheres on other planets may be rare 334pu7m
Dragon
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Earth-like biospheres on other planets may be rare Empty Re: Earth-like biospheres on other planets may be rare

Post by Dragon Thu Jun 24, 2021 3:50 am



After 'reanalyzing' data from NASA's Kepler Space Telescope, scientists have discovered an Earth-size planet, named Kepler-1649c, residing in its star system's habitable zone.


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Earth-like biospheres on other planets may be rare 334pu7m

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