The authoritative guide to ensuring science and technology make life on Earth better, not worse.

Events

Fires in the Amazon, August 15-22, 2019, as seen via NASA’s Terra satellite. Public domain image

Beyond the Threshold: The Urgency of Climate Change

April 17, 2025, 9:00 a.m. CDT | Virtual

Navy Petty Officer 3rd Class Nathaniel Carlyle, assigned to the guided missile destroyer USS Porter, prepares to fire the ship’s five-inch cannon during a live-fire exercise in support of Exercise Formidable Shield 2023 in the Atlantic Ocean, May 13, 2023. Formidable Shield is a biennial exercise involving a series of live-fire events against subsonic, supersonic, and ballistic targets.

The Uncertain Future of U.S. Nuclear Weapons Policy

April 10, 2025, 12:00 p.m. EDT | Virtual

Past events

A graphic reads, "89 seconds to midnight: Is time running out on nuclear arms control?." Below it are images of Former Governor of California Jerry Brown, Bulletin President and CEO Alexandra Bell, Bulletin Science and Security Board member Herb Lin, and former Deputy Secretary General of NATO Rose Gottemoeller.

89 seconds to midnight: Is time running out on nuclear arms control?

March 3, 2025, 4:00 p.m. PST | Virtual/In-person

The Doomsday Clock showing "It is 89 seconds to midnight" in between red Bulletin banners. (Photo by Jamie Christiani/Bulletin of the Atomic Scientists)

Closer to Midnight: The Return to a Nuclear Arms Race

February 19, 2025, 12:00 p.m. EST | Virtual

Donald Trump and Donald Trump Jr. at the 2024 New York City 9/11 Remembrance Ceremony.

President Trump's Nuclear Arms Challenges and The Dangers Ahead

January 30, 2025, 2:00 p.m. EST | Virtual

All past events