Big update: Half of our vacuum vessel, the very heart of our SPARC fusion machine, has landed in Devens, Massachusetts. The vacuum vessel is the donut-shaped chamber inside SPARC that'll house our fusion fuel — a superhot cloud of charged particles called a plasma. The delivery

Read the full article on China's fusion energy efforts here:

“China’s government has made fusion a national priority, marshaling resources at daunting speed… Fusion could change the calculus for both nations and the globe. Whoever conquers it could build plants around the world and forge new alliances with energy-hungry countries.” Be

"Historically, fusion has really been just only about the science of fusion, and that's gone very well. But now it's ready to be about building facilities." – @BobMumgaard, speaking to @axios' @ChuckMcCutcheon. Read the full article here: https://t.co/VIJ88KOEao #FusionEnergy

@BobMumgaard @ENERGY Read this for more on what the @Fusion_Industry Association and a broad range of fusion companies have to say about accelerating fusion energy:

“We have a once-in-a-lifetime opportunity to accelerate commercialization and create a global economy that is defined by fusion power.” –Commonwealth Fusion Systems CEO @BobMumgaard. With its new Office of Fusion and fusion energy roadmap, the Department of @ENERGY is laying the

Here's a scene of progress with one of our toroidal field (TF) magnets, those hefty D-shaped structures that wrap around SPARC's vacuum vessel to help tame its fusion fuel. This thick steel case houses the magnet, helping it hold up to powerful stresses during SPARC's operation.

"The US is losing the fusion race to China," writes @Ylli_Bajraktari, President of the @scsp_ai in the @WashTimes. While western governments treat fusion energy as an R&D project, China treats it as "a national imperative," he says. "Beijing has been executing an aggressive,

What would affordable and near limitless energy mean for the planet? As @voxdotcom lays out in this article, the possibilities are equally endless and could touch all facets of our lives — from where we live and how we work, to how we get around and what we eat. Unlimited

"Mumgaard now faces the challenge of hustling to deliver something useful within [the next decade], while also making the completion of the company’s demonstration system, SPARC, seem like a straightforward engineering task. He likes to say CFS already has the script written, and

Our Chief Marketing Officer Joe Paluska recently discussed how CFS and @GoogleDeepMind are pairing up to advance fusion energy at @WebSummit 2025. Check out our blog post to learn more about how this partnership has the potential to accelerate learning on SPARC and also make our

Last week, the U.S. Department of @ENERGY (DOE) established a new Office of Fusion — a good first step in bringing a new federal focus to this critical energy source. Now we need to ensure this office is set up for success with the leadership, the mission, and the resources it

The US government should accelerate work to commercialize fusion energy, says Chairman @RepBrianBabin (R-Texas), of the House Science, Space, and Technology Committee: “America has long been the world leader in fusion energy research, other nations are investing aggressively to

Through 62 presentations this week, researchers from Commonwealth Fusion Systems (CFS) and our collaborators are shining a physics spotlight on our SPARC fusion demonstration machine — and how it paves the way for our ARC power plant. Those presentations are at the premier

It’s time to detail the third of the six milestones every company must reach on the way to commercial fusion energy. Our CEO @BobMumgaard laid these out last year in an open letter to help separate the progress from the puffery — a guide for outside observers to track how well

With a one-time investment of $10 billion, the United States has a chance to reshape its energy future for the better. A few days ago, the @Fusion_Industry Association detailed just how the country should put that money to work. The result would be a chance to secure the

Data is good. Publishing it is good. This paper from @swurzel and @ScottCHsu is a peer-reviewed scorecard that lets us all track the concrete progress on our commercialization milestones — the solid foundation that builds trust in the fusion energy industry.

Learn more about the vacuum vessel delivery on our blog:

To get the first half of our vacuum vessel from Italy to the United States, we flew it on an Antonov An-124 Ruslan aircraft, an unusual four-engine cargo plane with room for the 48-ton component. Unlike passenger planes, the nose of the An-124 hinges upward to load and unload