Joined: 7 Feb 08
NASA scientists have been running a large number of computer simulations of exoplanet atmospheres. They conclude that the detection of any one gas is inadequate to establish that life is present on a planet. Such single gases may be produced by non-living processes. A combination of certain gases, such as oxygen and methane, will be necessary to demonstrate that extraterrestrial life has been discovered. Details are given in the article, linked below:
Joined: 31 Mar 14
Read that one...but more importantly, they said that CFC would be great in detecting an alien civilization...'cause CFC don't occur naturally! ;)
non-profit org. Play4Life in Zagreb, Croatia, EU
©2018 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.