Source: Skunk Works
Lockheed Martin will build a demonstrator airship with a massive radar system called the Integrated Sensor is Structure (ISIS) under a $400 million contract awarded today by the US Defense Advanced Research Projects Agency.
While I write the rest of the news story, please peruse the ISIS program overview that DARPA provided to contractors last month.
Hint: ISIS basically would be a combination E-3 AWACS/E-8C Joint STARS that can remain at 65,000ft for several years. So, not bad technology. If it works.