Authors:

As the scene of life would be more the cold emptiness of space than the warm, dense atmosphere of planets, the advantage of containing no organic material at all, so as to be independent of both these conditions, would be increasingly felt.

"The World, the Flesh and the Devil: An Enquiry into the Future of the Three Enemies of the Rational Soul". Book by John Desmond Bernal, 1929.
As the scene of life would be more the cold emptiness of space than the warm, dense atmosphere of planets, the advantage of containing no organic material at all, so as to be independent of both these conditions, would