Examines the various theories which attempt to explain the Nazca phenomena in terms of religious ritual, ancient roads, and astrological symbols

This doomsday masterpiece from the author of Eon and Hull Zero Three was a finalist for the Hugo and Nebula awards. On July 26, Arthur Gordon learns that Europa

After the long exile on Earth, John Carter finally returned to his beloved Mars. But beautiful Dejah Thoris, the woman he loved, had vanished. Now he was trappe

A handful of humans and a multitude of robots create a new society on an abandoned Earth in this novel by the Nebula Award–winning author of Way Station. What

Our origins as a slave species and the Anunnaki legacy in our DNA • Reveals compelling new archaeological and genetic evidence for the engineered origins of t