The authoritative guide to ensuring science and technology make life on Earth better, not worse.
By Vladimir Marakhonov | Nuclear Weapons, Opinion
By Andrew W. Reddie | Disruptive Technologies, Missile Defense
By Gabriela Iveliz Rosa-Hernández | Nuclear Risk
By Steven Pifer | Nuclear Weapons
By Amy J. Nelson, Michael O’Hanlon | Analysis, Nuclear Weapons
By Giles David Arceneaux | Nuclear Weapons
By Dominika Kunertova | Disruptive Technologies
By Matt Field | Biosecurity
By Edwin Lyman | Nuclear Energy, Nuclear Risk
By Anonymous Author | Special Topics
By John Mecklin | Nuclear Risk, Nuclear Weapons
By John Mecklin | Nuclear Weapons
Watch the 2025 Doomsday Clock announcement on January 28