Mars is cold enough that its meager water content appears to exist today simply in frozen and gas phases. But as recent evidence suggests, that may not have always been the case.
April 2nd, 2004
Water on Mars Physics Today
October 8th, 2000
The Candidates Respond: Space Policy Physics Today
Al Gore and George W. Bush recently answered a questionnaire concerning their views on various aspects of Science. In the question concerning space policy, Bush gives a detailed answer concerning Mars, Gore ignores Mars.