Mars
by Ben Bova
Jamie Waterman is a young Navaho geologist who is picked for the ground team of the first manned expedition to Mars. He will be joining an international team of astronauts and scientists. But once the crew land on Mars, they soon discover they must battle not only the alien land on which they have invaded but earthbound bureaucrats as well. When they come face to face with a chasm ten times as deep and large as the Grand Canyon, all twenty-five astronauts must face the most shocking discovery of all...