Website review: A Shadow Biosphere :: Astrobiology ...
gpasser discovered this in Biology
•2 reviews since Dec 2, 2006
biology
•astrobio.net/news/modules.php
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gpasser discovered 20 months ago- Scientific article detailing the concept of possible alien microbial life co-existing with our own on this planet.
- rieraci rated 20 months ago
- Could there be aliens here on Earth? While this question tends to bring out tales of UFOs and bug-eyed interstellar voyagers, it is not considered a bizarre urban legend by some astrobiologists. By "alien" they don't mean "coming from beyond Earth," they mean "other" -- other forms of DNA, other amino acids used to build proteins, any other means by which the chemistry of early Earth could have combined to form life we're not familiar with. If there are forms of life on Earth today with a biochemistry not like our own, how would we even know it?
