Extraterrestrial atmosphere star undergoing runaway greenhouse effect. For planets in the habitable zone, it was thought that water photolysis would be strongly limited by cold-trapping of water vapour in the lower atmosphere. However, the extent of HO cold-trapping depends strongly on the amount of non-condensible gases in the atmosphere such as nitrogen N and argon. In the absence of such gases, the likelihood of build-up of oxygen also depends in complex ways on the planet's accretion history, internal chemistry, atmospheric dynamics, and orbital state. Therefore, oxygen, on its own, cannot be considered a robust biosignature. The ratio of nitrogen and argon to
The More Abundant Life The More Abundant Life The More Abundant Life was a phrase of scriptural flavor used by the U.S. President Franklin D. Roosevelt in his address before the Inter-American Conference for the Maintenance of Peace in Buenos Aires, Argentina, December 1, 1936, to signify the improved living conditions and enlarged cultural and economic opportunities available to the whole world through the maintenance in the Western Hemisphere of constitutional representative government based on faith in God. The phrase is taken from the saying of Jesus at John 10:10: "The thief cometh not, but for to steal, and to kill, and to destroy: