ScienceAlert Astronomers in Spain have created a model of - TopicsExpress



          

ScienceAlert Astronomers in Spain have created a model of potential alien worlds based on Earths biological history, and it looks like as we search for life on extraterrestrial planets, we should be on the lookout for the colour purple. Among their evidence is the fact that 3 billion years ago during the Archean eon, purple bacteria dominated the surface of Earth; plus sunlight from binary stars - around which alien life could be common - includes ultraviolet wavelengths, so it could be that plant life on alien planets has evolved to be purple in order to optimise photosynthesis. Read more: bit.ly/1e68NXB via Discovery News Image: NASA (with purple added)
Posted on: Sat, 16 Nov 2013 12:12:05 +0000

Trending Topics




© 2015