Ukraine's SBU obliterates a $400m Russian Varshavyanka-class submarine in Crimea using a 'sea baby' drone. The attack marks a historic naval blow amid ongoing peace talks. Read the full report.
A 1918 German U-boat attack on survivors of a Canadian hospital ship set a crucial legal precedent. Discover the landmark case still cited in modern war crimes law.
The UK unveils its Atlantic Bastion programme, a £14m AI and autonomous vehicle project to protect critical undersea infrastructure from Russian threats. Read the full details.
A Russian drone strike has compromised the main protective shield at Chernobyl, the UN's nuclear watchdog confirms. Radiation levels remain stable, but urgent repairs are needed. Read the latest.
The Right Rev Thomas McMahon, Bishop of Brentwood for 38 years and a tireless campaigner for nuclear disarmament and social justice, has died aged 88. Read about his remarkable legacy.
Sweden's navy encounters Russian submarines almost weekly in the Baltic, with fears of increased activity post-Ukraine ceasefire. Read the latest on regional security.
A €1.5bn protective shield over Chornobyl is no longer containing radiation after a drone strike, the IAEA confirms. Urgent repairs are needed for long-term safety.
Defence officials admit US Virginia-class submarines visiting under Aukus could carry nuclear warheads, contradicting earlier government assurances. Explore the legal and strategic implications.
Skydiving instructors across the UK are staging an unprecedented strike today, halting operations at major tourism sites. Meanwhile, the government receives a crucial US review on the Aukus submarine pact. Follow our live blog for the latest updates.
Guardian's former environment correspondent Paul Brown issues a powerful final warning on political failure over climate crisis. Experts echo his call for urgent action.
PM Keir Starmer defends Chancellor Rachel Reeves amid accusations of misleading the public over the state of public finances. A fresh row with the OBR erupts over fiscal forecasts.
Becky Barnicoat's latest Guardian cartoon explores preparing for nuclear winter with dark humour. Discover how art captures our deepest anxieties about global threats.
Former Guardian environment correspondent Paul Brown shares crucial lessons from 45 years reporting on climate change, failed summits, and the nuclear industry from his hospital bed.
British energy bill payers will fund £2bn annually to EDF for Hinkley Point C and Sizewell C nuclear plants. Discover how Contracts for Difference impact your bills.
Ukrainian anti-corruption investigators raid home of President Zelenskyy's chief aide Andriy Yermak in nuclear energy kickback scandal. Follow latest developments.
Chancellor Rachel Reeves must decide on nuclear reforms that could slash energy bills or maintain costly bureaucracy spending £700m annually to protect a single fish.
Chancellor Rachel Reeves delays major nuclear power reforms following legal advice, putting £700m 'fish disco' savings on hold. Discover the implications for UK energy and growth.
A columnist marks her late mother's birthday at a nuclear disarmament meeting, exploring how the anti-nuclear argument has evolved since the 1980s. Discover the new threats to democracy.
A government taskforce proposes radical regulatory reforms to accelerate the UK's new nuclear reactor programme, aiming to lower costs and construction times while maintaining safety.
Defence giant Babcock reports robust H1 results with profit up 19%, but its share price fluctuates as investors debate future prospects. Discover the full analysis here.
The Trump administration announces a $1bn federal loan to restart Pennsylvania's Three Mile Island nuclear facility, which will power Microsoft's AI datacenters. Discover the implications for energy and tech.
Ukraine's anti-corruption bureau uncovers $100m kickback scheme involving nuclear energy body Energoatom during wartime crisis. Key Zelenskyy associate flees country.
European leaders debate nuclear proliferation as US support wanes. Experts warn of global instability while examining NATO's current arsenal and political implications.
Secret NATO document reveals Russia's advanced nuclear weapons including 'Flying Chernobyl' missile. Alliance faces significant defence challenges. Read the full analysis.
As nuclear tensions rise with Trump's testing remarks and China's expansion, the world faces renewed atomic threats. Read why non-proliferation efforts urgently need revival.
Iran's foreign minister reveals readiness to resume US nuclear negotiations if treated respectfully. Abbas Araghchi discloses new mediation requests amid ongoing tensions.
Iran confirms it has ceased all uranium enrichment following US airstrikes on its nuclear facilities. Foreign Minister demands 'equal and fair negotiations' with Washington. Read the latest.
The US and UK announce a landmark nuclear energy partnership to develop small modular reactors at Wylfa, creating thousands of jobs and advancing clean energy goals.
Wylfa on Anglesey confirmed as the site for the UK's first small modular reactor, with work starting in 2026. The project will support 3,000 jobs and power millions of homes. Read more.
Keir Starmer announces Rolls-Royce SMR will build Britain's first small modular reactors in Wales. The £2.5bn investment faces US criticism over rejected American bid. Discover the implications for UK energy security.