How much do we really under stand of how our planet came to be as we know it? Five scientists tell a tantalising tale. 3: So Near to Hell
' The gate through which life must pass on an earthlike planet at the beginning of its existence is far narrower than we would have supposed a few years ago. before we did those space-flight measurements'-DR ROBERT JASTROW , Director of NASA's Goddard Institute for Space Studies. Columbia University
(An Improbable Birth, by Professor Jacques Monod : 17 Mar)
