The program is called the Subterranean Challenge.
Having people on a ship is both an asset and a drawback.
The program aims to create autonomous, fighter-jet-like craft that would deploy from the sky and then wield air-to-air weapons.
What to know about the Ghost Fleet and Overlord programs.
Here comes the dirt bike, beware of the dirt bike.
Next step: making sure the TERN turns out okay
It can snag unmanned aerial vehicles that weigh as much as 1,100 pounds.
Called "Overcoming Obstacle 2016"
Newly released documents show DARPA has been trying to perfect insect espionage for decades
In a small desert ceremony, the military prepared to defend the heavens
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