—Sir Arthur C. Clarke
"I've seen the studies and I've seen the photographs—and there do appear to be formations of a 'face' and 'pyramids' [on Mars] that do not appear to be of natural or normal existence. It looks like they had to be fashioned by some intelligent beings. For this reason, I have asked NASA to provide assurances that the Mars Observer mission include this [set of targets] as one of its imaging objectives."
—Robert A. Roe, former Chairman, Congressional House Committee on Science, Space, and Technology
"Richard Hoagland has really been very successful [in The Monuments of Mars] because, as you know, not only do we have the Mars Observer coming up, but he has managed to convince the President [George Walker Bush] to state that a return to Mars is one of our major goals."
—Dr. John Klineberg, former Director, NASA-Lewis Research Center
"I'm sure you're aware of the extremely grave potential for cultural shock and social disorientation contained in this present situation, if the facts were prematurely and suddenly made public without adequate preparation and conditioning."
—Heywood Floyd, Head, The National Council of Astronautics, 2001