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

Nuclear Weapons

Does Israel really have 200 nuclear weapons, or was Colin Powell exaggerating?

By Dawn Stover | Nuclear Weapons, What We’re Reading

Nuclear Roulette — the interactive wheel of near disaster

By Dan Drollette Jr | Nuclear Weapons, What We’re Reading

How likely is an existential catastrophe?

By Émile P. Torres | Analysis, Biosecurity, Climate Change, Nuclear Weapons, Technology and Security

Questions for the presidential candidates on nuclear terrorism, proliferation, weapons policy, and energy

By Siegfried S. Hecker | Nuclear Energy, Nuclear Weapons

Should the United States begin talks to ban nuclear weapons?

By Zia Mian | Nuclear Weapons

Deterrence is the best assurance

By Adam Mount | Columnists, Nuclear Weapons

Rethink oldthink on no first use

By Kingston Reif, Daryl G. Kimball | Nuclear Weapons

How John Hersey’s Hiroshima revealed the horror of the bomb

By Dan Drollette Jr | Nuclear Weapons, What We’re Reading

What if you don’t trust the judgment of the president whose finger is over the nuclear button?

By Louis René Beres | Nuclear Weapons, Opinion

The dangers of no-first-use

By Franklin C. Miller, Keith B. Payne | Nuclear Weapons, Opinion

Neglecting nuclear security in the 2016 election

By Jeff Murphy, Chris Kruckenberg | Nuclear Weapons, Voices of Tomorrow

Why Obama should declare a no-first-use policy for nuclear weapons

By Ramesh Thakur | Analysis, Nuclear Weapons