W(h)ither the Drake equation?Published in:International Journal of Astrobiology, 2006, v. 5, n. 3, p. 243, doi. 10.1017/S1473550406003107By:Burchell, Mark J.Publication type:Article
WatSen: searching for clues for water (and life) on Mars.Published in:International Journal of Astrobiology, 2006, v. 5, n. 3, p. 211, doi. 10.1017/S1473550406003077By:Grady, Monica M.Publication type:Article