Deep Fission
Deep Fission is an advanced nuclear energy company leading a new era of scalable, reliable power.
We develop small modular reactors designed to operate one mile undergroundโdelivering safe, reliable and cost-effective energy to meet growing global demand.
06/05/2026
How long does it take to run a mile, and who can complete it the fastest? ๐
๐ Border collie: 3 minutes
๐ Olympic athlete: 3 minutes, 43 seconds
๐ College athlete: 4 minutes, 5 seconds
๐ถ Average U.S. adult: 9 minutes
By moving proven pressurized water reactor technologies one mile underground, we aim to unlock powerful advantages, including scalable power, natural containment and more.
How fast could you run the length of our borehole?
Learn more: https://www.deepfission.com/technology
06/04/2026
Not every high-paying career requires a 4-year degree.
Nuclear energy supports โ๏ธ
โข Skilled trades
โข Technicians
โข Operators
These are hands-on careers with strong salaries and long-term stability.
Deep Fission is focused on creating accessible career pathways like these, and more.
Learn more: https://www.deepfission.com/careers
06/03/2026
Meet Aleem Boatright. ๐ Heโs the Director of Nuclear Analysis at Deep Fission, leading the team responsible for evaluating the safety performance of our reactor design and helping ensure protection of people and the environment through rigorous nuclear analysis.
โWhat inspires me most about the work weโre doing at Deep Fission is the opportunity to show that nuclear powerโand specifically light-water reactorsโcan be simplified, rapidly deployed, and designed to be even safer and more reliable by leveraging natural physical phenomena and established engineering principles.โ
๐ช๐ต๐ฎ๐ ๐๐น๐ฒ๐ฒ๐บ ๐๐ถ๐๐ต๐ฒ๐ ๐บ๐ผ๐ฟ๐ฒ ๐ฝ๐ฒ๐ผ๐ฝ๐น๐ฒ ๐๐ป๐ฑ๐ฒ๐ฟ๐๐๐ผ๐ผ๐ฑ ๐ฎ๐ฏ๐ผ๐๐ ๐ป๐๐ฐ๐น๐ฒ๐ฎ๐ฟ โ๏ธ
โThe inherent safety of both cooling and moderating a nuclear reactor with water has been proven for decades, and it is the epitome of elegant engineering design. By implementing this well-understood technology with passive design features, subsurface deployment, and simplified supporting infrastructure, Deep Fission is building on that established foundation in a way that fully realizes its safety and helps to ensure even greater reliability.
Iโm excited to be part of a talented and innovative team thatโs turning a strong technical concept into something practical, buildable, and potentially game-changing to the energy sector. As an engineer, itโs rewarding to contribute to an effort focused on responsible deployment, operational safety and simplicity, and the future of reliable nuclear infrastructure.โ
Learn more: https://www.deepfission.com/
06/02/2026
Weโre excited to announce our partnership with Day & Zimmermann for the construction of our Gravity Nuclear Reactor.
As an engineering, procurement, and construction company and leader in the nuclear power industry, they will oversee the projectโs pre-construction planning and perform above-ground construction.
Our project site is located at the Great Plains Industrial Park in Parsons, Kansas, as part of the U.S. Department of Energy (DOE) Reactor Pilot Program.
Read more: https://www.dayzim.com/news/day-zimmermann-deep-fission-partner-to-build-underground-small-modular-reactor?utm_campaign=34502730-DZMC%20Nuclear&utm_content=378547602&utm_medium=social&utm_source=linkedin&hss_channel=lcp-12273 U.S. Department of Energy Office of Nuclear Energy
05/28/2026
How does our reactor technology work?
We are using established pressurized water reactor (PWR) technology, the most widely deployed nuclear reactor technology in the global commercial nuclear fleet.
What makes our system different is where the reactor is located. Instead of building large structures above ground, we are developing a small modular reactor (SMR) to be placed one mile below the Earthโs surface. The surrounding geology is intended to act as a natural layer of protection, designed to enhance safety and reduce surface impact.
Like all nuclear power systems, the reactor is expected to generate heat through a controlled fission process. That heat will be used to produce electricity in a highly monitored and regulated system.
Learn more: http://deepfission.com/faq
05/27/2026
This past week, we toured our Parsons, Kansas, site with members of our Deep Fission surface systems team as we discussed plans to deliver one-mile-deep nuclear power systems.
At these depths, geological isolation is expected to naturally provide essential pressure control while enhancing safety, eliminating the need for large above-ground containment structures.
Learn more โก๏ธ deepfission.com/sites
05/26/2026
One of the most important things to understand about nuclear energy is the fuel itself. โ๏ธ
Deep Fission's reactors will use a fuel called Low Enriched Uranium, commonly referred to as LEU. This fuel type is typically enriched to about 3โ5%.
So why does that matter? Because this level of enrichment is:
โ๏ธ Carefully controlled
โ๏ธ Widely used across the global nuclear industry
LEU is engineered for one purpose: โก๏ธ Powering nuclear reactors to deliver consistent, reliable electricity.
Across the industry, fuels ranging from natural uranium to LEU and advanced fuels like HALEU are all used within carefully regulated enrichment ranges, and are all engineered for safe, reliable energy production.
Learn more: https://brnw.ch/21x2QzG
05/26/2026
Progress continues at our Parsons, Kansas, site. ๐ We finished ground preparations this past week for our second test well, which we intend to use to demonstrate deep deployment (~2500 ft) of major components and to test borehole thermal behavior.
As part of our testing, we also expect to use the well to lower a prototype reactor underground to help validate key aspects of our deployment approach.
Weโve also brought in additional trailers to support the needs of our construction and field teams as work on-site has expanded.
We believe this next phase will play an important role in advancing site characterization and development efforts as we continue progressing toward deployment of our one-mile-deep nuclear energy systems.
Itโs exciting to see progress taking shape in Parsons as we continue advancing our deployment efforts.
Learn more: https://www.deepfission.com/sites
05/24/2026
Thank you, Parsons, for welcoming us at this yearโs Katy Days Festival!
We appreciated everyone who stopped by the Deep Fission booth to learn more about our project at Great Plains Industrial Park, ask questions and connect with our team.
It was a great opportunity to meet members of the community, and we look forward to many more conversations and interactions in the future.
Learn more: https://www.deepfission.com/sites
05/22/2026
Hey, Parsons! ๐ Stop by our booth at the Katy Days Festival this weekend for a fun photo op, and to meet several members of our Deep Fission team.
More info: https://www.katydays.com/
https://www.deepfission.com/sites
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