Gold in the Sky by Alan E. Nourse

This Halcyon Classics ebook is GOLD IN THE SKY by Alan E. Nourse. Greg Hunter. Test pilot--happy only when his life hung in the balance. Tom Hunter. A pioneer--his frontier was hidden in test tubes. Johnny Coombs. A prospector--he returned from the asteroids too soon. Merrill Tawney. An industrialist--he sought plunder even beyond the stars. Major Briarton. A government man--his creed was law and order.