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

Watch the 2025 Doomsday Clock announcement on January 28


Darya Dolzikova

Darya Dolzikova is a research fellow in proliferation and nuclear policy at the Royal United Services Institute in London.


Articles by Darya Dolzikova

Iran vs. Israel redux: The enormous difficulties and ramifications if Israel attacks Iran’s nuclear sites

By Darya Dolzikova, Matthew Savill | Nuclear Weapons

Despite the risks, Russia continues to use Ukraine’s Zaporizhzhia nuclear plant as a source of leverage

By Darya Dolzikova | Nuclear Energy, Nuclear Risk

Why Iran may accelerate its nuclear program, and Israel may be tempted to attack it

By Darya Dolzikova, Matthew Savill | Nuclear Weapons
Image of an Iranian Fateh-110 missile being launched during the Great prophet-7 military exercise in 2012.

Triple threat: Russia, Iran, and North Korea trade arms to get around sanctions

By Darya Dolzikova, Daniel Salisbury | Nuclear Weapons

Who killed the US-Russia plutonium agreement, and does it really matter?

By Darya Dolzikova | Nuclear Weapons, Voices of Tomorrow

A measured response to Russian nuclear saber-rattling

By Darya Dolzikova | Nuclear Weapons, Voices of Tomorrow