'A real space novel that predicts many of the problems that will confront the men and women who actually make the trip sometime around 2020'
James A. Michener
'There used to be only one Mars and it belonged to Edgar Rice Burroughs . . . Now Ben Bova has landed, with a new pair of eyes, and Mars is brand new again'
Ray Bradbury
'Extraordinary . . . MARS succeeds as scientific exploration, as adventure story, as a mythic tale'
Orson Scott Caird
'a splendid book . . . of his many books, MARS must be the most important'
Arthur C. Clarke
'Gripping, realistic - don't miss it'
Terry Brooks