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Black plants and twilight zones. Discoveries of distant planets are challenging theorists to think deeply about extraterrestrial life.
Sci Am 303(6):20 (2010) PMID 21141351
Version: za2963e q8za2 q8zb3 q8zc3 q8zd5 q8ze4 q8zff q8zgf
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Sci Am 303(6):20 (2010) PMID 21141351
Version: za2963e q8za2 q8zb3 q8zc3 q8zd5 q8ze4 q8zff q8zgf
Nature 468(7321):173 (2010) PMID 21068814
Astrobiology 7(5):745-55 (2007) PMID 17963474
Science 316(5824):528 (2007) PMID 17463257