DARPA stands for the Defense Advanced Research Projects Agency. It is part of the U.S. government and is responsible for research and development in technologies that will help the U.S. military forces. DARPA works with universities, government agencies, and private companies to develop technologies that can be used to protect the country and our troops. Some of the things DARPA works on include artificial intelligence, robotics, cyber security, advanced communication systems, and advanced technology for space exploration.