Nelson, Bryn <br/><br/>
Black plants and twilight zones. Discoveries of distant planets are challenging theorists to think deeply about extraterrestrial life.  [electronic resource] 

 -  Scientific American  Dec 2010 
 - 20 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-8733 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Exobiology<br/>Extraterrestrial Environment<br/>Planets<br/>Plants