SHG - UFO Symposium 1968: Sagan Statementhttp://www.project1947.com/shg/symposium/sagan.html
of intelligent extraterrestrial life, and since this estimate is to be made in this symposium, clearly it is the hypothesis that unidentified objects are of extraterrestrial origi
The Great Water Conundrumhttps://www.darkstar1.co.uk/water.html
Scientific Quest for Extraterrestrial life" p43, Oxford University Press 2000 Here Be Dragons 16) Philip Ball "Mars may have a frozen sea" Nature , 22
Dark Star Water Conundrum 2 by Andy Lloyd, Anomalous solar system evidence
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