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heavy water

Satellite photo provided by Planet Labs PBC shows the Shimon Peres Negev Nuclear Research Center near the city of Dimona, Israel, July 5, 2025. (Planet Labs PBC via AP)
September 3, 2025, 1:08 pm
Satellite photos show intense work at Dimona nuclear reactor site, AP reports
Experts consulted by wire service divided on purpose of major construction project, assessing it could be for new heavy water reactor or for assembling alleged nuclear weapons
By Jon Gambrell
This handout satellite image released by Maxar Technologies on June 19, 2025 and taken on June 18, 2025, shows a view of the Iranian nuclear facility at Arak in central Iran. (Satellite image ©2025 Maxar Technologies / AFP)
June 20, 2025, 12:54 am
IAEA: No fear of ‘radiological effects’ after IDF hits Iran’s Arak heavy water reactor
UN nuclear watchdog reports ‘key buildings’ at the unfinished facility were damaged in attack, which Israel said ‘targeted the component intended for plutonium production’
By Reuters and ToI Staff
Technicians work at the Arak heavy water reactor's secondary circuit, as officials and media visit the nuclear site, near Arak, 150 miles (250 kilometers) southwest of the capital Tehran, Iran, December 23, 2019. (Atomic Energy Organization of Iran via AP)
November 25, 2020, 10:07 am
Iran’s parliament demands construction of heavy water reactor
In defiance of international sanctions on nuclear program and amid European criticism, bill also calls for operating metal uranium production plant
By ToI Staff and Agencies
Iran's Arak heavy water reactor (photo credit: Hamid Foroutan/ISNA/AFP)
December 23, 2019, 1:59 pm
Second circuit of Iran’s Arak reactor to be completed Monday – reports
Milestone brings site closer to reopening and producing heavy water, a key ingredient in the production of plutonium, which fuels nuclear weapons
By ToI Staff and Agencies
A view of the heavy-water production plant in the central Iranian town of Arak, August 26, 2006. (AP/ ISNA, Arash Khamoushi)
November 19, 2019, 5:07 pm
UN confirms Iran stockpiling heavy water in latest breach of nuclear deal
Tehran informed IAEA its heavy water production has surpassed 130 metric tons allowed by 2015 accord with world powers
By ToI Staff
This January 15, 2011, file photo, shows a part of Arak heavy water nuclear facilities, near the central city of Arak, 150 miles southwest of the capital Tehran, Iran (Mehdi Marizad/Fars News Agency via AP)
November 18, 2019, 6:04 pm
UN says Iran amassing heavy water in fresh breach of nuclear deal
In leaked report, IAEA says Tehran informed it this week that its stock of heavy water had exceeded 130 metric tons
By ToI Staff
A technician at the Uranium Conversion Facility just outside the city of Isfahan, Iran, 255 miles (410 kilometers) south of the capital Tehran, February 3, 2007. (AP/Vahid Salemi/File)
November 6, 2019, 2:44 am
US accuses Iran of ‘nuclear extortion’ as Tehran expands enrichment at key plant
State Dept.: Iran’s move will ‘deepen its political, economic isolation’; Tehran brags of heavy water sales contravening sanctions; bans cooperation with outlawed UK cultural body
By Agencies and ToI Staff
Iran's Arak heavy water nuclear facilities, Jan. 15, 2011. (AP/Fars News Agency, Mehdi Marizad)
October 20, 2019, 9:52 pm
Iran official: Second circuit of Arak reactor to be completed in two weeks
Assistant to head of Iranian atomic energy program claims country produces 20 tons of heavy water a year, is self-sufficient in designing and producing centrifuges
By ToI Staff and AFP
Iran's Arak heavy water reactor (photo credit: Hamid Foroutan/ISNA/AFP)
June 16, 2019, 3:15 pm
Iran says it will unveil measures reducing commitment to nuclear pact on Monday
Amid mounting Gulf tensions, Tehran set to announce resumption of ‘limitless’ uranium enrichment at shuttered Arak heavy water reactor
By ToI Staff and Agencies
An Iranian technician walks through the Uranium Conversion Facility just outside the city of Isfahan, Iran, February 3, 2007. (AP/Vahid Salemi)
May 31, 2019, 5:57 pm
UN atomic agency says Iran nuclear stockpiles growing, but still within limits
Tehran boosts production of low-enriched uranium and heavy water, inspectors say they still have unrestricted access to the sites
By KIYOKO METZLER
A tower of Iran's Uranium Conversion Facility is seen just outside the city of Isfahan, south of the capital Tehran, August 8, 2005. (Mehdi Ghasemi, ISNA/AP)
May 15, 2019, 9:55 am
Iran drops commitment to cap uranium enrichment, as nuclear deal unravels
Official from country’s atomic agency says move part of 60-day ultimatum set by President Rouhani for negotiating new terms
By ToI Staff and Agencies
Joachim Ronneberg (left), Jens Anton Poulsson and Kasper Idland receive King Haakon VII of Norway at the premiere of the film Operation Swallow: The Battle for Heavy Water in Oslo, 1948. (CC BY-SA 4.0 Wikipedia/Leif Ornelund)
October 22, 2018, 12:11 am
Norway mourns WWII resistance fighter who halted Nazis’ nuclear drive
Joachim Ronneberg, immortalized in the Hollywood movie ‘The Heroes of Telemak’ for his role leading 1943 sabotage operation in occupied homeland, dies aged 99
By AFP
A animation showing the 1944 sinking of the ferry SF Hydro, that was being used by the Nazis to transport heavy water from Norway to Germany (screen capture: YouTube.)
September 1, 2018, 9:34 pm
TV show examines boat sinking that halted Nazi nuke program
Scientists find numerous barrels of heavy water aboard ferry destroyed by Norwegian resistance fighters
By ToI Staff
Illustrative: Iran's heavy water nuclear facilities near the central city of Arak. (CC-BY-SA 3.0/Wikimedia/Nanking2012)
June 2, 2017, 6:34 pm
UN report says Iran is complying with nuclear accord
Tehran’s stocks of low-enriched uranium and heavy water remain within agreed limit, watchdog states
By AFP
Iran's heavy water nuclear facility, near the central city of Arak (AP/ISNA, Hamid Foroutan/File)
March 18, 2017, 8:03 am
Iran disputes cap on heavy water under nuclear deal
Tehran argues it should be allowed to hold more than the 130-ton limit as it searches for buyers for the excess material
By ToI Staff and AFP
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