New Study Says Plants on Distant Planets May Be Black

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This artist's conception shows the inner four planets of the Gliese 581 system and their host star, a red dwarf star only 20 light years away from Earth.
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According to new research, planets with multiple suns may host trees and shrubs that are black or gray instead of the more familiar green, depending on the particulars of light available for photosynthesis.

BBC's science reporter Neil Bowler explains how red dwarf stars - the most common type of star in the universe - could affect plant life on distant planets, making plants appear black or gray to human eyes.