The prototype is called the High Altitude Airship, or HAA. Lockheed Martin Maritime Systems & Sensors in Akron won the $40 million contract from the Missile Defense Agency to build HAA in 2003. It is essentially another blimp. A giant one. Seventeen times the size of the Goodyear dirigible. It's designed to float 12 miles above the earth, far above planes and weather systems. It will be powered by solar energy, and will stay in a geocentric orbit for up to a year, undetectable by ground-based radar. You can't see it from the ground. But it can see you.
This is a high powered Airship called High Altitute Airship can monitor from the sky and watch over a circle of 600 miles and undetectable by radar. That is a powerful monitoring device designed by Lockheed Martin. These airships have high resolution monitor that can pinpoint to far great accuracy than previous blimps that were available before. They claim it will be useful for border surveillance and for homeland security. They also may use it to spy other countries. Besides cameras it can house any surveillance equipments, only hope is homeland security use it wisely. Its expected launch date is 2009.