Mining the oort

From the back cover Del Ray paperback July 1993: LOYALTY DIVIDED Mars was harsh, arid, and unforgiving, but for the colonists who called it home, its future was as bright as the comets that hung in the night sky. The comets were the hope of Mars's rebirth, corralled by the miners of the Mars Project from the vast Oort Cloud beyond Pluto -- for locked in those icy bodies were the water and gases that would make Mars green. Young Dekker DeWoe yearned to become an Oort miner. But when he finally arrived on Earth to begin training, he was suddenly confronted with the looming death of his dream.…