The Manhattan Project Resources

U.S. Department of Energy

Office of Environment, Health, Safety and Security

Office of History and Heritage Resources

Spotlight Archive

J. Robert Oppenheimer Personnel Hearings TranscriptsJ. Robert Oppenheimer Personnel Hearings Transcripts — In December 1953, the Atomic Energy Commission (AEC) suspended the security clearance of Dr. J. Robert Oppenheimer, and after a four-week, closed-door hearing in April and May 1954, formally revoked that clearance. In June 1954, the AEC released a redacted version of the hearing transcript, (see AEC press release), with security classified information deleted, published by the Government Printing Office (GPO) under the title, In the Matter of J. Robert Oppenheimer: Transcript of Hearing before Personnel Security Board. See Oppenheimer transcripts.

OpenNet Celebrates its 20th AnniversaryOpenNet Celebrates its 20th Anniversary! — Twenty years ago, the Department of Energy introduced OpenNet, a web site to improve public access to declassified documents. OpenNet began with bibliographic citations for over a quarter million documents. In the last 20 years, OpenNet has nearly doubled in size to around 490,000 bibliographic citations. OpenNet has evolved from a few complete documents to almost 140,000 fully searchable electronic full-text documents. See key events.

Understanding the AtomU.S. Atomic Energy Commission Atom Information Booklets — The U. S. Atomic Energy Commission, predecessor to the U. S. Department of Energy, published two series of information booklets on the atom for the general public in the 1960s-1970s. The series "Understanding the Atom" were educational booklets for high school science students and their teachers. The series "The World of the Atom" were for the general public. See the booklets.
Calutron (Y-12) Operators Manhattan ProjectThe Manhattan Project: Resources — The Department of Energy's Office of Classification and Office of History and Heritage Resources have joined together in a collaborative effort to make available historical information and key documentation on the Manhattan Project effort during World War II to build the atomic bomb. See The Manhattan Project: Resources.

Atomic Energy Commission's Secretariat Files — The Office of Classification is releasing declassified, historical documents of the Atomic Energy Commission's Secretariat files. These files, dated from 1958 to 1966, give insight into the activities of the Atomic Energy Commission during a key segment of the Cold War Era. See collection.
National Security Information Fundamental Classification Guidance Review — In June 2012, the Office of Classification published the "National Security Information Fundamental Classification Guidance Review." See report.
Human Radiation Experiments: — This collection of documents tells the Department of Energy's Cold War story of radiation research using human subjects. See collection.