J
JonClarke
Guest
The majority vote 1965-1971 was indeed that Mars was a moon like planet with a wisp of atmosphere. I was round back then. The impact of this of just about everything to do with space was profound - mission planning, scientific attitudes, public interest, political support science fiction were all effected.<br /><br />However 1971 and Mariner 9/Mars 2 & 3 changed everything. Mars once had liquid water, Mars still had large amounts of ice at the poles, and might still have it in the subsurface. The presence of large young volcanoes meant there might be liquid water in the subsurface. This was the dominant view of Mars until the late 90's when MOC showed that water might still flow on the surface now, not just back in the Noachian.<br /><br />The 1971 conceptual revolution was widely publised in newspapers, in National Geographic and other magazines, in TV documentaries, in popular books. It was not just in a few arcane scientific papers. Hoagland was a reputable science and space journalist at the time. He knows this and has no excuse for saying otherwise. The fact that people believe him shows a terrifying ignorance of even the the most popular level literature about Mars. There is no excuse for that level of ignorance if people say they are are interested in Mars. However people like Hoagland capitalise on such ignorance, and do very well as a result.<br /><br />Jon <div class="Discussion_UserSignature"> <p><em>Whether we become a multi-planet species with unlimited horizons, or are forever confined to Earth will be decided in the twenty-first century amid the vast plains, rugged canyons and lofty mountains of Mars</em> Arthur Clarke</p> </div>