DARPA wants to reduce the military's reliance on Global Positioning System satellite guidance for advanced munitions, missiles and other weapons by putting a navigation system on a chip.
Satellite communications take on a new role as military space assets redeploy and budgets decline.
A quartet of lawmakers has asked Federal Communications Commission Chairman Julius Genachowski to find a viable solution that will allow prospective wireless provider LightSquared to launch its planned 4G network.
Northrop Grumman doesn't know when the Air Force is going to cancel its Block 30 Global Hawk program.
DARPA is reaching out to a number of commercial industries to find parts for low-cost spacecraft that would be deployed to give warfighters in remote locations access to space-based imagery for tactical purposes.
Laws governing arms control are hindering progress in satellite communications and space development, say industry experts.
Between fiscal pressures and the end of the space shuttle program, the U.S. government must find creative ways of meeting spaceflight needs.
Satellite security problems change constantly, but contracts don't, officials say.