What Will Plants Be Like on Alien Worlds?

Scientists know enough about exoplanets to speculate about how simple plants might arise on them. But don't count on them being green.

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Cassandra Hall ,Nathalie Cabrol ,Institute Carl Sagan Center ,University Of Georgia ,Milky Way ,Space Telescope ,Carl Sagan ,Astrobiology ,Exoplanets ,Stars ,Plants ,Bacteria ,Astronomy ,Biology ,Space ,Aliens ,