Idaho National Lab

The nation's nuclear energy research laboratory. (RTs are not endorsements)

[Idaho National Lab @INL]

At Idaho National Laboratory, our work is more than #research, it’s a commitment to building a better future for our communities, our country and the world.

Learn more ➡️ https://t.co/yzvVJ20vYf

#BetterFutureINL

[Idaho National Lab @INL]

Our #cybersecurity capabilities support @ENERGY in fortifying #NationalSecurity against modern cyberthreats targeting IT systems, #OperationalTechnology & infrastructure.

@INL's Sean McAraw identifies three imperatives for senior leaders & policymakers. https://t.co/DVSYuj7p5a

[Idaho National Lab @INL]

The origin of @INL's Neutron Radiography Reactor is #PuertoRico, where it operated until 1974. Its fuel elements, core components & radiography beam lines were then moved to #Idaho.⚛️

In 1977, NRAD achieved criticality and became a key asset. Learn more: https://t.co/KW7d7uzQIV

[Idaho National Lab @INL]

Hydropower developers: Apply by July 23 for @ENERGY-funded Hydropower Testing Network program vouchers to access @INL's #hydropower modernization, #cybersecurity and grid stabilization capabilities. 🌊⚡

Learn about testing services and apply now: https://t.co/h1FvPgkL0H

[Idaho National Lab @INL]

🗓️ Aug. 19-20 | 📍Park City, Utah

Join government, industry, #nationallabs & regulators @INL's A/SMR Cybersecurity & Operational Resilience Summit.

Hear from keynote speakers Pedro Allende & Harry Wingo on securing #AdvancedNuclear. Register now: https://t.co/qVfbVSw4fK

[Idaho National Lab @INL]

Take a 360-degree tour inside @INL’s Advanced Test Reactor! 🎥⚛️

Since 1967, ATR has powered #NuclearResearch — advancing fuels, supporting the @USNavy, producing medical cobalt‑60, and enabling future #Space missions.

Click & drag on YouTube to explore: https://t.co/gIiG6w2zde

[Idaho National Lab @INL]

🗓️ July 14 | 🕚 11 a.m. MT |📍Virtual

Join @INL & the Center for Securing Digital Energy Technology for a 60-minute webinar on the COGNITO AI Readiness Framework — a consequence-driven approach to adopting #AI across #EnergySystems.

Register now: https://t.co/cRYLrRkzuL

[Idaho National Lab @INL]

.@AaloAtomics' Aalo-X reactor achieved criticality, becoming the 55th reactor @INL & 4th advanced reactor to go critical by July 4. Congrats! 🇺🇸

INL supported with procedure development, facility construction, operations support, fuel management, environmental compliance & more.

[U.S. Department of Energy @ENERGY]

https://t.co/vV2LnuEDRu

[Office of Nuclear Energy | US Department of Energy @GovNuclear]

FOUR REACTORS CRITICAL BY THE 4TH! 🎉

On July 4 at 12:19 AM MDT, @AaloAtomics’ Aalo-X microreactor achieved initial criticality at @INL, marking the fourth @ENERGY-authorized reactor to go critical this year.

Congratulations to Aalo Atomics on reaching this historic milestone!

[Idaho National Lab @INL]

Red, white & glowing BLUE! 🇺🇸 ⚛️

The celebration of American innovation continues. #NuclearEnergy is at the core of @INL research & our Advanced Test Reactor’s world-famous blue glow is a fitting tribute to the spirit of innovation.

https://t.co/fayTUVJixH

#America250 #Nuclear

[Idaho National Lab @INL]

.@INL was honored to be part of the @IdahoFallsGov #4thOfJuly parade today & celebrate with friends & neighbors.🇺🇸

We’re proud to call Idaho Falls home & hope everyone has enjoyed #IndependenceDay celebrations as much as we have!

https://t.co/6kBv8iKUwn

#America250 #Community

[Idaho National Lab @INL]

.@INL celebrates #America250 by helping achieve a record-breaking milestone of advanced #NuclearReactor criticalities by the #4thOfJuly!🇺🇸⚡️

The U.S. is the first nation to achieve criticality in this many novel systems in a single month. Let's go!

https://t.co/6kBv8iKUwn

[Idaho National Lab @INL]

Happy 1️⃣3️⃣6️⃣th birthday, #Idaho! 🎉

@INL is proud to call the Gem State home to the impactful #research benefiting our state and the nation.

Learn more: https://t.co/cPEOi9dGVi

#Nuclear #Energy #AI #NationalSecurity

[Idaho National Lab @INL]

.@EnergyUnderSec visited @INL, touring facilities & meeting with experts to learn about the advanced #NuclearReactors on track for criticality this summer, HALEU fuel production, #CriticalMinerals processing, #AI-accelerated #nuclear & cyber defense.⚡🇺🇸

https://t.co/cPEOi9dGVi

[Idaho National Lab @INL]

This milestone also marks the first criticality under the newly established @NRICnuclear Nuclear Energy Launch Pad — the follow-on initiative to @ENERGY's Reactor Pilot Program designed to accelerate commercial deployment of advanced #nuclear.

#NuclearRenaissance #NuclearEnergy

[Idaho National Lab @INL]

.@DeployableE's demonstration reactor, Unity, achieved criticality, helping meet the goal set by executive orders to have at least three advanced #NuclearReactors critical by July 4th. Congrats! ⚛️👏

@ENERGY @NRICnuclear #NuclearEnergy #America250 #NuclearRenaissance

[Office of Nuclear Energy | US Department of Energy @GovNuclear]

CRITICALITY NUMBER THREE! 🎉

On June 30, 2026, at around 11:55 PM MDT, @DeployableE’s Unity microreactor achieved initial criticality at @INL. It is the third nuclear test reactor this year to go critical under @ENERGY authorization.

Congratulations to Deployable Energy on reaching this historic milestone!

[Idaho National Lab @INL]

.@INL was honored to host @SecretaryWright  to celebrate executive orders signed last May to accelerate advanced #NuclearReactors achieving criticality. Watch the recap! ⚛️⬇️

More on our #nuclear research: 
https://t.co/k0AIF1hbMH
https://t.co/DgxajlSaIQ

@ENERGY @GovNuclear

[Idaho National Lab @INL]

The first advanced #NuclearReactor achieved criticality under @ENERGY's Reactor Pilot Program recently! But what does achieving criticality mean? ⚛️💫

It means a reactor achieves a self-sustaining chain reaction. More on our new reactor #criticality page: https://t.co/7xfvw2zh4W

[Idaho National Lab @INL]

At 6-foot-8, Tanner Mauseth stands out. So does his work at @INL.🔬

Mauseth uses advanced microscopes and precision testing tools to study irradiated #nuclear material, support #NuclearResearch and train the next generation of scientists.

Read more ➡️ https://t.co/R1TMmholRv

[Idaho National Lab @INL]

In 1951, four lightbulbs flickered to life by #NuclearEnergy in the Idaho desert, changing the world forever. ⚛️💡

After five decades of continuous milestones, @INL is leading the most ambitious #nuclear energy push since Apollo 11.

Watch the full film: https://t.co/4PrtsLeL6T

[Idaho National Lab @INL]

In 1951, four lightbulbs flickered to life by #NuclearEnergy in the Idaho desert, changing the world forever. ⚛️💡

After five decades of continuous milestones, @INL is leading the most ambitious #nuclear energy push since Apollo 11.

Watch the full film: https://t.co/4PrtsLeL6T