The authoritative guide to ensuring science and technology make life on Earth better, not worse.
By Don Safer, Sara Barczak | Nuclear Energy, Opinion
By Steven Starr, Robin Collins, Robert Green, Ernie Regehr | Nuclear Weapons, Opinion
By Kairat Umarov | Nuclear Energy, Nuclear Weapons, Opinion
By Adam Mount | Nuclear Weapons, Opinion
By Masako Toki | Nuclear Weapons, Opinion, Special Topics
By Tadahiro Katsuta | Nuclear Weapons, Opinion, Technology and Security
By Dan Drollette Jr | Nuclear Weapons, Opinion
By Petr Suchy, Bradley A. Thayer | Nuclear Weapons, Opinion, The INF Treaty and the Future of Arms Control
By Dan Drollette Jr | Nuclear Weapons, Opinion, Technology and Security
By John H. Thomas | Climate Change, Opinion
By Lawrence M. Krauss | Opinion, Special Topics
By Cesar Jaramillo | Nuclear Weapons, Opinion
Watch the 2025 Doomsday Clock announcement on January 28
