On January 27, 1967, the day of the Apollo 1 fire, Armstrong was in Washington, DC with Cooper, Gordon, Lovell and Scott Carpenter for the signing of the United Nations Outer Space Treaty.
Tanggal 27 Januari 1967, tanggal kebakaran Apollo 1, Armstrong sedang berada di Washington, D.C., bersama Gordon Cooper, Dick Gordon, Jim Lovell dan Scott Carpenter untuk penandatanganan Traktat Luar Angkasa PBB.