The Defense Science Board says the Global Positioning System constellation should grow to 30 satellites—to offset what it terms the “significant risk” posed by the current reconstitution and modernization plan. In a report released last week (but dated October 2005), the well-regarded panel recommends that USAF develop the next-generation GPS Block III satellites in weights that would permit launch of two sats at a time. That says DSB would help reign in costs that might prohibit fleet expansion. The board also wants to improve the ability for GPS to defend itself against electronic jamming and expand signal availability.
The U.S. thwarted a drone attack on U.S. forces at Al Asad air base in western Iraq on April 22, marking the first time that American troops have been targeted since February, U.S. officials said. “We can confirm it was an attack on Al Asad,” a defense official told Air & Space…