Thought some of you in the group might be interested in this. The Article comes from Defense Daily, 07/22/99 DARPA STUDYING FREE MANEUVER OPTIONS FOR SPACE VEHICLES By Frank Wolfe The Defense Advanced Research Projects Agency (DARPA) is studying how to move space vehicles freely, rather than having them rely on traditional orbiting cycles, and the implications of such movement, DARPA director Frank Fernandez said yesterday. "We don't maneuver in space very much," he told reporters at a Defense Writers Group breakfast. "What we do is we go into space and we park in orbit. What would happen if we could figure out a way to maneuver in space at will? What could you do from the standpoint of concentrating resources and from the standpoint of targeting?" Such free space travel is hampered by lack of fuel. DARPA is studying different kinds of more efficient, less costly and safe fuel and a possible space tanker to refuel satellites and other space vehicles. Unrestricted space travel requires making "fuel a commodity in space," Fernandez said, adding that free travel may mean that enemies will no longer be able to predict when U.S. satellites will pass overhead. The DARPA director, who has been in his position since May, touched on a number of other topics in addition to DARPA's new space effort.