In a sense, U.S. nuclear weapons exist not to be used. And while nuclear threats seem far away, a tool from one group brings the scenario close to home.

Key Points and Summary: While Russia possesses the world's largest arsenal of tactical nuclear weapons and maintains an intentionally ambiguous doctrine, the actual use of these weapons in the Ukraine ...

Today’s nuclear landscape is more precarious than during the Cold War July 3, 2025 at 5:16 p.m. EDT1 minute ago This page lists a series of articles by experts from the Federation of American ...

It would be a-crop-alyptic. Amid rising tensions around the world, Penn State University scientists have revealed what the fallout would be from a nuclear war — with an unfathomable famine, mass ...

There is a risk that the war of words between Moscow and DC could escalate. Ad Policy The 2025 Doomsday Clock time is displayed after the time reveal held by The Bulletin of the Atomic Scientists at ...

A new congressionally mandated report from the National Academies of Sciences, Engineering, and Medicine examines the potential environmental, social, and economic effects that could unfold over the ...

Recent conflicts in Europe and the Middle East have reignited fears about the use of nuclear weapons. What would a nuclear conflict do to the planet’s environment today? In a new congressionally ...

This is read by an automated voice. Please report any issues or inconsistencies here. “At the end of the Cold War, global powers reached the consensus that the world would be better off with fewer ...

Nuclear-armed nations like India and Pakistan engaging in conflicts heighten the risk of global nuclear war. The threat of accidental or miscalculated nuclear war is ever-present due to factors like ...

In “Preventing Nuclear War,” an essay published in the Bulletin of the Atomic Scientists, in 1981, the Harvard law professor Roger Fisher imagines a President in the White House, discussing nuclear ...

On July 16, 1945, the first nuclear bomb exploded in the desert sands of New Mexico under the watchful gaze of Manhattan Project scientists. Known as the Trinity test, the blast marked the beginning ...

Back in the late 2000s, I was teaching a class on nuclear weapons to undergraduates who had mostly come of age after the fall of the Soviet Union. As I tried to explain what it was like to grow up ...