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Narrated by: Mary Ann Weathers

Unabridged — 9 hours, 45 minutes

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Overview

In the year 2026, the first humans traveled to Mars. Soon after, additional people traversed the expanse, their trek times decreased thanks to advances in propulsion. Then in the late 2030s, A.I. systems radically altered space travel by unlocking the secrets of gravity, thus cutting the travel time from six months to six hours.

With this new travel technology, humans emigrate to Mars by the millions, forming cities and governments, and eventually the Martian Federation. All the while, Earth...