Loading video...

Video Failed to Load

There was a problem loading this video. This could be due to a temporary network issue or the video might be unavailable.

Here's a first look inside our Critical Test Reactor Facility, housing Aalo's first nuclear reactor. The CTR is a milestone in developing Aalo-X, our demonstration nuclear power plant purpose-built to power AI data centers. Take a tour with our CTO Yasir Arafat and learn how the facility works.

Aalo Atomics

18,358 subscribers

12,709 views • 3 months ago •via X (Twitter)

Anya Rossi• Live Now

Private livecam show

0 Comments

No comments available

Comments from the original post will appear here

Related Videos

Today, we unveiled our completed Critical Test Reactor facility. This commercial-scale reactor with fuel to produce 10 MW of electricity was assembled on site from modular components to conclude a net ~70 day timeline from a desert plot to a reactor, reactor facility, and command & control center. Nuclear fuel will arrive soon and, pending final DOE approval, we will go critical before the President Donald J. Trump July 4th deadline. Here's a first look at some of the work that has gone into this unveiling:

Today, we unveiled our completed Critical Test Reactor facility. This commercial-scale reactor with fuel to produce 10 MW of electricity was assembled on site from modular components to conclude a net ~70 day timeline from a desert plot to a reactor, reactor facility, and command & control center. Nuclear fuel will arrive soon and, pending final DOE approval, we will go critical before the President Donald J. Trump July 4th deadline. Here's a first look at some of the work that has gone into this unveiling:

Aalo Atomics

151,973 views • 5 months ago

We’ve gone critical. At 12:20 am on July 4th, Aalo sustained a controlled fission chain reaction for the first time. We have officially surpassed the goal of President Trump’s Executive Order 14301, achieving 4 advanced nuclear reactor criticalities by America’s 250th birthday. This is a zero-power criticality to validate our supply chain, reactor physics and control systems for our 10 MWe full-powered reactor, the Aalo-X, targeting power operations next year. Everything was built at full scale: fuel, moderator, control systems, etc., so we understand system performance at its commercial scope. That also meant tackling four of the most difficult things in nuclear with this criticality milestone: ✅ Ground-up construction of our reactor facility ✅ Manufacturing the reactor in our factory and shipping them by road ✅ Assembling our own fuel assemblies using commercial UO2 ✅ Standing up training, safety, and operational programs to become our own nuclear operator I am proud to say we have accomplished all four goals, along with achieving criticality. The reactor building was constructed in 36 days and construction to criticality was achieved in under 8 months. That’s the fastest nuclear build in the last 80 years. A massive congratulations to the Aalo Atomics team and our partners. Many thanks to Idaho National Laboratory, the DOE-Idaho Operations Office, and the Office of Nuclear Energy for their immense support in enabling this milestone and dedicated to the American nuclear resurgence.

We’ve gone critical. At 12:20 am on July 4th, Aalo sustained a controlled fission chain reaction for the first time. We have officially surpassed the goal of President Trump’s Executive Order 14301, achieving 4 advanced nuclear reactor criticalities by America’s 250th birthday. This is a zero-power criticality to validate our supply chain, reactor physics and control systems for our 10 MWe full-powered reactor, the Aalo-X, targeting power operations next year. Everything was built at full scale: fuel, moderator, control systems, etc., so we understand system performance at its commercial scope. That also meant tackling four of the most difficult things in nuclear with this criticality milestone: ✅ Ground-up construction of our reactor facility ✅ Manufacturing the reactor in our factory and shipping them by road ✅ Assembling our own fuel assemblies using commercial UO2 ✅ Standing up training, safety, and operational programs to become our own nuclear operator I am proud to say we have accomplished all four goals, along with achieving criticality. The reactor building was constructed in 36 days and construction to criticality was achieved in under 8 months. That’s the fastest nuclear build in the last 80 years. A massive congratulations to the Aalo Atomics team and our partners. Many thanks to Idaho National Laboratory, the DOE-Idaho Operations Office, and the Office of Nuclear Energy for their immense support in enabling this milestone and dedicated to the American nuclear resurgence.

Yasir Arafat

99,877 views • 2 months ago

Very excited to announce today that Crusoe and Aalo Atomics have partnered to deploy the world’s first AI data center powered by a small modular nuclear reactor, which will be located in Idaho at Idaho National Lab - together we will pair an Aalo modular nuclear reactor with a Crusoe Spark modular data center to demonstrate a vision of safe, abundant, affordable, clean and reliable nuclear power for the growing needs of AI.

Very excited to announce today that Crusoe and Aalo Atomics have partnered to deploy the world’s first AI data center powered by a small modular nuclear reactor, which will be located in Idaho at Idaho National Lab - together we will pair an Aalo modular nuclear reactor with a Crusoe Spark modular data center to demonstrate a vision of safe, abundant, affordable, clean and reliable nuclear power for the growing needs of AI.

Cully Cavness

65,978 views • 1 month ago

The Department of Energy has formally approved our Preliminary Documented Safety Analysis (PDSA) for the Mark-0 reactor—our first demonstration reactor, scheduled to go live before July 4, 2026. Mark-0 will validate fueling operations, reactor controls, and core physics. This demonstration is a critical step toward generating electricity from advanced microreactors. Mark-0 uses a full-scale core and the same facility and fuel that will support our next reactor test in 2027. The PDSA defines the preliminary safety basis for the reactor, facility, and planned operations, demonstrating that our approach meets DOE expectations at this stage. This approval validates our safety case and establishes a clear pathway to final acceptance as we prepare for fabrication, assembly, and installation. Mark-0 will be tested at Idaho National Laboratory in Building 793—now the Reactors and Critical Experiments facility—a site with deep nuclear history. Decades ago, this building housed ML-1, the Army’s first mobile nuclear reactor. Today, it supports the next generation of deployable nuclear power. We find the historical relevance fitting and inspiring, as Antares develops a similar-scale microreactor to meet Army operational and installation needs. Since 2024, we’ve worked to establish this facility as an enduring testbed, enabling rapid progress without the need for groundbreaking construction. We’re grateful for our partners at DOE and INL, and for leaders like Congressman Mike Simpson who continue to support the American nuclear renaissance.

The Department of Energy has formally approved our Preliminary Documented Safety Analysis (PDSA) for the Mark-0 reactor—our first demonstration reactor, scheduled to go live before July 4, 2026. Mark-0 will validate fueling operations, reactor controls, and core physics. This demonstration is a critical step toward generating electricity from advanced microreactors. Mark-0 uses a full-scale core and the same facility and fuel that will support our next reactor test in 2027. The PDSA defines the preliminary safety basis for the reactor, facility, and planned operations, demonstrating that our approach meets DOE expectations at this stage. This approval validates our safety case and establishes a clear pathway to final acceptance as we prepare for fabrication, assembly, and installation. Mark-0 will be tested at Idaho National Laboratory in Building 793—now the Reactors and Critical Experiments facility—a site with deep nuclear history. Decades ago, this building housed ML-1, the Army’s first mobile nuclear reactor. Today, it supports the next generation of deployable nuclear power. We find the historical relevance fitting and inspiring, as Antares develops a similar-scale microreactor to meet Army operational and installation needs. Since 2024, we’ve worked to establish this facility as an enduring testbed, enabling rapid progress without the need for groundbreaking construction. We’re grateful for our partners at DOE and INL, and for leaders like Congressman Mike Simpson who continue to support the American nuclear renaissance.

Antares

16,481 views • 7 months ago

Join me and Aalo Atomics Atomics CEO Matt Loszak at their Critical Test Reactor at Idaho National Lab — the first new reactor built there in 50 years! Aalo is racing toward criticality by July 4, 2026, America’s 250th birthday. This isn’t random. It directly answers President Trump’s Executive Order 14301, which launched the DOE Reactor Pilot Program and set the goal of at least three advanced test reactors reaching criticality by Independence Day. Aalo’s sodium-cooled Aalo-X design (built for AI data centers) is proving that with bold policy and American ingenuity, we can move nuclear from paperwork to power at startup speed.

Join me and Aalo Atomics Atomics CEO Matt Loszak at their Critical Test Reactor at Idaho National Lab — the first new reactor built there in 50 years! Aalo is racing toward criticality by July 4, 2026, America’s 250th birthday. This isn’t random. It directly answers President Trump’s Executive Order 14301, which launched the DOE Reactor Pilot Program and set the goal of at least three advanced test reactors reaching criticality by Independence Day. Aalo’s sodium-cooled Aalo-X design (built for AI data centers) is proving that with bold policy and American ingenuity, we can move nuclear from paperwork to power at startup speed.

Joe Tegtmeyer 🚀 🤠🛸😎

27,143 views • 2 months ago

Europe is leveling up with nuclear. The EU starts to massively support developing NXT generation nuclear power technologies, SMR's, and the first Fusion reactor is getting built. France will supply a nuclear shield over Europe, protecting us all. Europe, atomic superpower 🇪🇺

Europe is leveling up with nuclear. The EU starts to massively support developing NXT generation nuclear power technologies, SMR's, and the first Fusion reactor is getting built. France will supply a nuclear shield over Europe, protecting us all. Europe, atomic superpower 🇪🇺

NXT EU

11,453 views • 5 months ago

🚨🇺🇸 THAT’S NOT A TRACTOR, IT’S A 50MW NUCLEAR REACTOR BUILT FOR AI Looks like farm gear, except it’s not. This is a 50 megawatt electric nuclear reactor built start to finish in just two weeks. Purpose-built to feed AI data centers. No concrete dome. No giant facility, it is just one vault holding the whole reactor. Compact. Fast. Powerful. Every part is made in a South Austin factory. Final snap-together happens on-site. This is the new atomic age. And it's already online. Source: Eric M Henrikson

🚨🇺🇸 THAT’S NOT A TRACTOR, IT’S A 50MW NUCLEAR REACTOR BUILT FOR AI Looks like farm gear, except it’s not. This is a 50 megawatt electric nuclear reactor built start to finish in just two weeks. Purpose-built to feed AI data centers. No concrete dome. No giant facility, it is just one vault holding the whole reactor. Compact. Fast. Powerful. Every part is made in a South Austin factory. Final snap-together happens on-site. This is the new atomic age. And it's already online. Source: Eric M Henrikson

Mario Nawfal

173,210 views • 1 year ago

See behind the scenes of Aalo's advanced reactor criticality, occuring at 12:20 a.m. MT on July 4th. This is a first-of-its-kind, uncut five-hour stream showcasing the technical process of starting up a nuclear reactor for the first time. Programming includes previously unreleased videos, interviews with Aalo engineers, and remarks from Matt Loszak and Yasir Arafat. We will release key segments (1-10 minute duration) with commentary throughout this week. Part 1/2 - preshow to final fuel assembly:

See behind the scenes of Aalo's advanced reactor criticality, occuring at 12:20 a.m. MT on July 4th. This is a first-of-its-kind, uncut five-hour stream showcasing the technical process of starting up a nuclear reactor for the first time. Programming includes previously unreleased videos, interviews with Aalo engineers, and remarks from Matt Loszak and Yasir Arafat. We will release key segments (1-10 minute duration) with commentary throughout this week. Part 1/2 - preshow to final fuel assembly:

Aalo Atomics

25,308 views • 1 month ago

Former Intel CEO Pat Gelsinger: "People are talking about these one, five, ten-megawatt data centers... Every time somebody says 'gigawatt', the image I want in your mind is a nuclear reactor. One nuclear reactor is about a gigawatt of power capacity."

Former Intel CEO Pat Gelsinger: "People are talking about these one, five, ten-megawatt data centers... Every time somebody says 'gigawatt', the image I want in your mind is a nuclear reactor. One nuclear reactor is about a gigawatt of power capacity."

TBPN

57,056 views • 11 months ago

This nuclear fuel (UZrH) has an incredible property: It can't melt itself down. But why isn't it used in reactors everywhere? In this video, we visit UT Austin's UZrH nuclear reactor and put it to the test: we actually TRY to make it melt down. Then we explore the history of UZrH, the challenges of using it in a power-generating reactor, and the upside if these challenges are overcome. cc Aalo Atomics Yasir Arafat Christian Keil

This nuclear fuel (UZrH) has an incredible property: It can't melt itself down. But why isn't it used in reactors everywhere? In this video, we visit UT Austin's UZrH nuclear reactor and put it to the test: we actually TRY to make it melt down. Then we explore the history of UZrH, the challenges of using it in a power-generating reactor, and the upside if these challenges are overcome. cc Aalo Atomics Yasir Arafat Christian Keil

Matt Loszak

24,896 views • 1 year ago

Today is a big day for nuclear energy. We are proud to share that GE Vernova Hitachi Nuclear Energy has received approval from the Province of Ontario and Ontario Power Gen to proceed with the deployment of the first small modular reactor #SMR in the Western world. This milestone marks a significant step forward in our commitment to driving innovation in the nuclear power sector. 🎥 Learn more about how the BWRX-300 will transform the energy landscape around the world. 📝 Read the announcement: #GEVernova #GEVernovaHitachi #NuclearEnergy #Innovation

Today is a big day for nuclear energy. We are proud to share that GE Vernova Hitachi Nuclear Energy has received approval from the Province of Ontario and Ontario Power Gen to proceed with the deployment of the first small modular reactor #SMR in the Western world. This milestone marks a significant step forward in our commitment to driving innovation in the nuclear power sector. 🎥 Learn more about how the BWRX-300 will transform the energy landscape around the world. 📝 Read the announcement: #GEVernova #GEVernovaHitachi #NuclearEnergy #Innovation

GE Vernova

24,441 views • 1 year ago

Today the 'Aaloverse' showed up to celebrate a big win in the factory. Our first XMR modules -- our reactor lego blocks -- are officially shipping. Here's an inside look at how we make them:

Today the 'Aaloverse' showed up to celebrate a big win in the factory. Our first XMR modules -- our reactor lego blocks -- are officially shipping. Here's an inside look at how we make them:

Aalo Atomics

31,744 views • 8 months ago

🇺🇸 DEPARTMENT OF WAR AIRLIFTS NEXT-GEN NUCLEAR REACTOR TO UTAH IN MAJOR ENERGY MILESTONE A C-17 just transported a next-generation nuclear reactor from California to Utah for testing at the San Rafael Energy Lab. The goal: assess how advanced nuclear systems can power military installations and remote defense operations. War Secretary Hegseth: "We're going to have the lights on and AI operating when others are not because of our nuclear capabilities." Source: Department of War / Fox News

🇺🇸 DEPARTMENT OF WAR AIRLIFTS NEXT-GEN NUCLEAR REACTOR TO UTAH IN MAJOR ENERGY MILESTONE A C-17 just transported a next-generation nuclear reactor from California to Utah for testing at the San Rafael Energy Lab. The goal: assess how advanced nuclear systems can power military installations and remote defense operations. War Secretary Hegseth: "We're going to have the lights on and AI operating when others are not because of our nuclear capabilities." Source: Department of War / Fox News

Mario Nawfal

303,006 views • 6 months ago

Big tech companies are striking deals with nuclear energy providers for AI. "Amazon has an agreement with a startup called X Energy to build a small modular reactor power plant in Washington state." "Terra Power, which is a Bill Gates-funded small modular reactor startup, has a deal with Meta." — Nick Wingfield, Features Editor

Big tech companies are striking deals with nuclear energy providers for AI. "Amazon has an agreement with a startup called X Energy to build a small modular reactor power plant in Washington state." "Terra Power, which is a Bill Gates-funded small modular reactor startup, has a deal with Meta." — Nick Wingfield, Features Editor

The Information

21,032 views • 1 month ago

BREAKING: 🇧🇩🇷🇺 Bangladesh has became a Nuclear-powered nation Thanks to Russia Bangladesh launches first power unit of the Rooppur Nuclear Power Plant — built together with Russia The head of Russia's Rosatom calls the launch of Bangladesh's first nuclear power plant a historic event for the country

BREAKING: 🇧🇩🇷🇺 Bangladesh has became a Nuclear-powered nation Thanks to Russia Bangladesh launches first power unit of the Rooppur Nuclear Power Plant — built together with Russia The head of Russia's Rosatom calls the launch of Bangladesh's first nuclear power plant a historic event for the country

Megatron

114,330 views • 4 months ago

"If you're developing advanced, small, or micro modular reactor projects, this is your invitation to submit a proposal to join our pipeline." Our first-ever framework for advanced nuclear opens today, as part of our golden age of nuclear. 🎥 Lord Vallance explains

"If you're developing advanced, small, or micro modular reactor projects, this is your invitation to submit a proposal to join our pipeline." Our first-ever framework for advanced nuclear opens today, as part of our golden age of nuclear. 🎥 Lord Vallance explains

Department for Energy Security and Net Zero

33,059 views • 7 months ago

The US for the first time transported a small nuclear reactor on a cargo plane from California to Utah to demonstrate the potential to quickly deploy nuclear power for military and civilian use

The US for the first time transported a small nuclear reactor on a cargo plane from California to Utah to demonstrate the potential to quickly deploy nuclear power for military and civilian use

Reuters

130,068 views • 6 months ago

6 months in Huntsville → our first full-scale prototype built and tested. Full-scale components. Real temperatures. Real pressures. Real data shaping the reactor we’ll take critical in 2026.

6 months in Huntsville → our first full-scale prototype built and tested. Full-scale components. Real temperatures. Real pressures. Real data shaping the reactor we’ll take critical in 2026.

Antares

39,761 views • 9 months ago