He walks with a cane and is a bit hard of hearing. Yet Boris Chertok, 95, a former deputy chief designer in the Soviet bureau that put the first Sputnik satellite into orbit 50 years ago, still has strong opinions on the evolution of the country's space program. Chertok says the free-market changes instituted by President Boris Yeltsin after the Soviet Union fell apart were disastrous for Russian science. "We need to restore what we have lost over 15 years of destructive reforms," said Chertok, whose very name was once a state secret. "The market economy is incapable of fulfilling...