Imagine this same conflict but every single ship contains a HALEU lootbox
April 25, 2026 at 8:15 PM
Imagine this same conflict but every single ship contains a HALEU lootbox
Nuclear powered container ships are such a funny thing to suggest in 2026. Yeah, what international shipping lanes really need are big HALEU lootboxes
July 20, 2026 at 1:28 PM
Nuclear powered container ships are such a funny thing to suggest in 2026. Yeah, what international shipping lanes really need are big HALEU lootboxes
If you're about to found another HALEU TRISO gas-cooled reactor startup, can I recommend not doing that???? I'm tired
November 25, 2025 at 5:16 PM
If you're about to found another HALEU TRISO gas-cooled reactor startup, can I recommend not doing that???? I'm tired
Pre-payments under the contract will support Centrus's ongoing expansion of its uranium enrichment capacity, with deliveries of HALEU.
#nuclear #news
https://www.world-nuclear-news.org/articles/antares-centrus-sign-multi-year-haleu-contract
#nuclear #news
https://www.world-nuclear-news.org/articles/antares-centrus-sign-multi-year-haleu-contract
Antares, Centrus sign multi-year HALEU contract
Pre-payments under the contract will support Centrus's ongoing expansion of its uranium enrichment capacity, with deliveries of high-assay low-enriched uranium (HALEU) to support Antares' advanced reactor projects, including for space and national security missions, to begin by the end of the decade. ;
www.world-nuclear-news.org
September 22, 2026 at 10:00 PM
Pre-payments under the contract will support Centrus's ongoing expansion of its uranium enrichment capacity, with deliveries of HALEU.
#nuclear #news
https://www.world-nuclear-news.org/articles/antares-centrus-sign-multi-year-haleu-contract
#nuclear #news
https://www.world-nuclear-news.org/articles/antares-centrus-sign-multi-year-haleu-contract
I wanted to name our dog HALEU in 2020 and my lame husband said "No". (Her name is Laika and she is very energy dense)
December 4, 2024 at 11:46 PM
I wanted to name our dog HALEU in 2020 and my lame husband said "No". (Her name is Laika and she is very energy dense)
Urenco approved to enrich uranium up to 10% in "all existing and future cascades".
This is HALEU, but only the lower end of HALEU enrichments. Sometimes this enrichment level, 5-10%, is referred to as LEU+
www.ans.org/news/2025-10...
#NukeSky
This is HALEU, but only the lower end of HALEU enrichments. Sometimes this enrichment level, 5-10%, is referred to as LEU+
www.ans.org/news/2025-10...
#NukeSky
Urenco USA gets OK to enrich uranium up to 10 percent
www.ans.org
October 9, 2025 at 10:49 PM
Urenco approved to enrich uranium up to 10% in "all existing and future cascades".
This is HALEU, but only the lower end of HALEU enrichments. Sometimes this enrichment level, 5-10%, is referred to as LEU+
www.ans.org/news/2025-10...
#NukeSky
This is HALEU, but only the lower end of HALEU enrichments. Sometimes this enrichment level, 5-10%, is referred to as LEU+
www.ans.org/news/2025-10...
#NukeSky
Though I'm deeply skeptical that anyone will be able to do anything useful with Pu faster than Centrus/Orano/Urenco will start churning out HALEU. Heck, Urenco USA is already producing HALEU (<10% so not what many companies want but still, it's HALEU!!)
bsky.app/profile/nucl...
bsky.app/profile/nucl...
HALEU is truly in limited supply, it really does affect the ability of new reactors to build and start up. But can you build a safe, secure, economical mixed-actinide fuel fabrication facility faster than it will take to get commercial HALEU production online? I'm deeply skeptical!
June 1, 2026 at 5:29 AM
Though I'm deeply skeptical that anyone will be able to do anything useful with Pu faster than Centrus/Orano/Urenco will start churning out HALEU. Heck, Urenco USA is already producing HALEU (<10% so not what many companies want but still, it's HALEU!!)
bsky.app/profile/nucl...
bsky.app/profile/nucl...
🚨 JUST IN: A newly declassified cable reinforces proliferation concerns about high-assay low-enriched uranium fuel, and reveals an urgent need for an international review of #HALEU use, writes Ed Lyman (@nucsafetyucs.bsky.social).
#uranium #enrichment #proliferation #IAEA #safeguards #nukesky
#uranium #enrichment #proliferation #IAEA #safeguards #nukesky
Declassified cable reinforces proliferation concerns about high-assay low-enriched uranium fuel
The declassified document reveals an urgent need for an international review of the proliferation risks of HALEU.
thebulletin.org
November 7, 2025 at 11:28 AM
🚨 JUST IN: A newly declassified cable reinforces proliferation concerns about high-assay low-enriched uranium fuel, and reveals an urgent need for an international review of #HALEU use, writes Ed Lyman (@nucsafetyucs.bsky.social).
#uranium #enrichment #proliferation #IAEA #safeguards #nukesky
#uranium #enrichment #proliferation #IAEA #safeguards #nukesky
so is HALEU basically just medium enriched uranium? 🔌💡
December 3, 2024 at 9:02 PM
so is HALEU basically just medium enriched uranium? 🔌💡
Gosh, there is a whole rabbit hole of how UF6 is stored/transported in the USA. Unsurprisingly lots of guidelines. The big cylinders (30B) are for no more than 5% U235. The little cylinders for HEU are called 5B. This is a big issue for HALEU because HALEU is >5% but would exceed the 5B supply.
July 26, 2026 at 11:31 AM
Gosh, there is a whole rabbit hole of how UF6 is stored/transported in the USA. Unsurprisingly lots of guidelines. The big cylinders (30B) are for no more than 5% U235. The little cylinders for HEU are called 5B. This is a big issue for HALEU because HALEU is >5% but would exceed the 5B supply.
Zu 3. (Unabhängigkeit): die meisten Konzepte brauchen "HALEU", speziell angereichertes Uran. Einziger Lieferant: Russland.
Rosatom steckt übrigens in der gesamten Lieferkette stiefeltief drin (siehe www.mdr.de/tv/programm/...)
Uranminen haben wir in der gesamten EU nicht.
4/
Rosatom steckt übrigens in der gesamten Lieferkette stiefeltief drin (siehe www.mdr.de/tv/programm/...)
Uranminen haben wir in der gesamten EU nicht.
4/
Die Nuklearfalle | MDR.DE
www.mdr.de
March 10, 2026 at 5:52 PM
Zu 3. (Unabhängigkeit): die meisten Konzepte brauchen "HALEU", speziell angereichertes Uran. Einziger Lieferant: Russland.
Rosatom steckt übrigens in der gesamten Lieferkette stiefeltief drin (siehe www.mdr.de/tv/programm/...)
Uranminen haben wir in der gesamten EU nicht.
4/
Rosatom steckt übrigens in der gesamten Lieferkette stiefeltief drin (siehe www.mdr.de/tv/programm/...)
Uranminen haben wir in der gesamten EU nicht.
4/
U.S. Department of Energy to Distribute First Amounts of HALEU to U.S. Advanced Reactor Developers
#uranium #nuclearenergy
www.energy.gov/articles/us-...
#uranium #nuclearenergy
www.energy.gov/articles/us-...
U.S. Department of Energy to Distribute First Amounts of HALEU to U.S. Advanced Reactor Developers
The U.S. Department of Energy (DOE) today made conditional commitments to provide high-assay low-enriched uranium (HALEU) to five U.S. nuclear developers to meet their near-term fuel needs.
www.energy.gov
April 9, 2025 at 5:01 PM
U.S. Department of Energy to Distribute First Amounts of HALEU to U.S. Advanced Reactor Developers
#uranium #nuclearenergy
www.energy.gov/articles/us-...
#uranium #nuclearenergy
www.energy.gov/articles/us-...
Inside this morning's climate briefing:
✅ Trump to ax logging protections from 44 million acres of national forest
✅ Energy Department promises HALEU nuclear fuel to 3 more companies
✅ Federal agents arrest firefighters battling Washington blaze
✅ Trump to ax logging protections from 44 million acres of national forest
✅ Energy Department promises HALEU nuclear fuel to 3 more companies
✅ Federal agents arrest firefighters battling Washington blaze
Trump Axes Logging Protections for 44 Million Acres of National Forest
On Alaska’s permitting overhaul, HALEU winners, and Heatmap’s Climate 101
heatmap.news
August 28, 2025 at 2:19 PM
Inside this morning's climate briefing:
✅ Trump to ax logging protections from 44 million acres of national forest
✅ Energy Department promises HALEU nuclear fuel to 3 more companies
✅ Federal agents arrest firefighters battling Washington blaze
✅ Trump to ax logging protections from 44 million acres of national forest
✅ Energy Department promises HALEU nuclear fuel to 3 more companies
✅ Federal agents arrest firefighters battling Washington blaze
Uranium enriched to 60% is, of course, already a weapon-grade material in that it does not require further enrichment. A relevant paper from Science & Global Security. Lower enrichments, even HALEU, will work too. And design doesn't have to be implosion. scienceandglobalsecurity.org/archive/2025...
March 13, 2026 at 6:41 PM
Uranium enriched to 60% is, of course, already a weapon-grade material in that it does not require further enrichment. A relevant paper from Science & Global Security. Lower enrichments, even HALEU, will work too. And design doesn't have to be implosion. scienceandglobalsecurity.org/archive/2025...
A 900s Isp nuclear SLS Exploration Upper Stage:
www.researchgate.net/publication/...
HALEU fuel, TWR 3, 533 MW with extendable nozzle. Despite adding a tungsten radiation shield and only having an 18.4t LH2 reserve, payload delivered to Mars +17%, Uranus +210%, Interstellar +77778%
www.researchgate.net/publication/...
HALEU fuel, TWR 3, 533 MW with extendable nozzle. Despite adding a tungsten radiation shield and only having an 18.4t LH2 reserve, payload delivered to Mars +17%, Uranus +210%, Interstellar +77778%
July 9, 2026 at 4:23 PM
A 900s Isp nuclear SLS Exploration Upper Stage:
www.researchgate.net/publication/...
HALEU fuel, TWR 3, 533 MW with extendable nozzle. Despite adding a tungsten radiation shield and only having an 18.4t LH2 reserve, payload delivered to Mars +17%, Uranus +210%, Interstellar +77778%
www.researchgate.net/publication/...
HALEU fuel, TWR 3, 533 MW with extendable nozzle. Despite adding a tungsten radiation shield and only having an 18.4t LH2 reserve, payload delivered to Mars +17%, Uranus +210%, Interstellar +77778%
Kan iemand mij uitleggen hoe Europa binnen 10 jaar energie onafhankelijk wordt als je fossiele brandstoffen inruilt voor meer vraag naar nucleaire brandstoffen - voor UOX, MOX - die buiten Europa gedolven/geproduceerd worden?
(Niet aankomen met Thorium/HALEU; duurt te lang en/of onzeker)
(Niet aankomen met Thorium/HALEU; duurt te lang en/of onzeker)
EU wil vanaf 2030 kleine kerncentrales inzetten voor energieonafhankelijkheid
De Europese Unie gaat flink investeren in kernenergie om minder afhankelijk te worden van buitenlandse energiebronnen en schommelende prijzen. Dat blijkt dinsdag uit de nieuwe, ambitieuze energiestrat...
www.nu.nl
March 10, 2026 at 6:00 PM
Kan iemand mij uitleggen hoe Europa binnen 10 jaar energie onafhankelijk wordt als je fossiele brandstoffen inruilt voor meer vraag naar nucleaire brandstoffen - voor UOX, MOX - die buiten Europa gedolven/geproduceerd worden?
(Niet aankomen met Thorium/HALEU; duurt te lang en/of onzeker)
(Niet aankomen met Thorium/HALEU; duurt te lang en/of onzeker)
From my colleague, @nucsafetyucs.bsky.social at @ucs.org, "without appropriate constraints, large-scale production and use of HALEU may greatly increase the risks of nuclear proliferation and terrorism" and it seems this was recognized decades ago:
Declassified cable reinforces proliferation concerns about high-assay low-enriched uranium fuel
The declassified document reveals an urgent need for an international review of the proliferation risks of HALEU.
thebulletin.org
November 13, 2025 at 6:33 PM
From my colleague, @nucsafetyucs.bsky.social at @ucs.org, "without appropriate constraints, large-scale production and use of HALEU may greatly increase the risks of nuclear proliferation and terrorism" and it seems this was recognized decades ago:
I tot el bluscai esperant-lo amb la pancarta Oh, benvingut, haleu, haleu!
December 21, 2024 at 12:17 PM
I tot el bluscai esperant-lo amb la pancarta Oh, benvingut, haleu, haleu!
HALEU is truly in limited supply, it really does affect the ability of new reactors to build and start up. But can you build a safe, secure, economical mixed-actinide fuel fabrication facility faster than it will take to get commercial HALEU production online? I'm deeply skeptical!
May 27, 2026 at 1:14 AM
HALEU is truly in limited supply, it really does affect the ability of new reactors to build and start up. But can you build a safe, secure, economical mixed-actinide fuel fabrication facility faster than it will take to get commercial HALEU production online? I'm deeply skeptical!
It’s great to see this kind of progress in developing HALEU fuel for commercial reactors, but reactor.engr.wisc.edu has been doing critical experiments with HALEU for 15 years (as have many other research reactors around the country)
LANL researchers complete HALEU criticality experiment
The Deimos experiment at Los Alamos National Laboratory is the first criticality experiment using high assay low-enriched uranium fuel to be carried out in the USA in more than 20 years...
www.world-nuclear-news.org
December 3, 2024 at 1:00 PM
It’s great to see this kind of progress in developing HALEU fuel for commercial reactors, but reactor.engr.wisc.edu has been doing critical experiments with HALEU for 15 years (as have many other research reactors around the country)