Philip Corso

Philip J. Corso (1915–1998) was a U.S. Army Lieutenant Colonel who served from 1942 to 1963. He is best known for his memoir The Day After Roswell, in which he claimed involvement in the research and reverse engineering of extraterrestrial technology recovered from the 1947 Roswell UFO incident. His book was ghostwritten by William J. Birnes and became a New York Times bestseller in 1997.