oxygen which sent him into cardiac arrest. He died from asphyxia due to the toxic gases from the fire, with burns contributing to his death. Failed oxygen and ethylene glycol pipes near the fire's origin point continued burning an intense secondary fire which melted through the cabin floor. By the time firefighters were able to open the hatch, the fire had extinguished itself. The back of Chaffee's couch was found in the horizontal position, with the lower portion angled towards the floor. His helmet was closed and locked, his restraints were undone, and the hoses and electrical connections to the suit remained connected. As he was farthest from the origin of the fire, he suffered the least burn and suit damage. Aftermath Shortly after the AS-204 fire in 1967, NASA Associate Administrator for Manned Spaceflight George Mueller announced the mission would be officially designated as Apollo 1. The capsule underwent a significant redesign as a result of the disaster. The atmosphere in the cabin was changed from 100% oxygen to a 60% oxygen and 40% nitrogen environment at launch. The astronauts' spacesuits, originally made of nylon, were changed to beta cloth, a non-flammable, highly melt-resistant fabric woven from fiberglass and coated with Teflon. There were other changes, including replacing flammable cabin materials with self-extinguishing ones, and covering plumbing and wiring with protective insulation. Chaffee and Grissom were buried in Arlington National Cemetery, while White was buried at West Point Cemetery. Chaffee's widow received $100,000 from the life insurance portion of the contract the astronauts signed with two publishing firms so they would have exclusive rights to stories and photographs of the astronauts and their families. She also received $16,250 per year for the life of the contract. Memorials Chaffee is memorialized in many ways, from the Chaffee Crater on the far side of the Moon, to the Roger B. Chaffee Planetarium in his hometown of Grand Rapids, Michigan. Another memorial is a hill on Mars, Chaffee Hill, south-southwest of Columbia Memorial Station, part of the Apollo 1 Hills. Regor (Roger spelled backwards), is a seldom-used nickname for the star Gamma Velorum. Grissom used this name, plus two others for White and himself, on his Apollo1 mission planning star charts as a joke, and the succeeding Apollo astronauts kept using the names as a memorial. A terrestrial memorial is Chaffee Island, an artificial island off Long Beach, California, created in 1966