What is Nuclear? – Learn about nuclear power

Essentials

Start here to learn more about nuclear power's capabilities and limitations. You'll learn about different types of nuclear reactors, reprocessing, thorium, fission vs. fusion, and nuclear waste.

Start with the Essentials

Deep Dives

Get nuanced by reading about nuclear power economics, thorium, the Rickover memo, and beyond

Dive deeper

History

Learn about the amazing things done in the first nuclear era, and how they can help us proceed today.

Take me back

Reference

We also feature large amounts of useful reference information and calculators.

Bask in info

Consulting

Hire us for nuclear consulting work. We can help execute your reactor strategy, perform expert technical reviews, do due diligence, and more.

Hire us

Latest Updates

Regulatory Reforms the Nuclear Industry wants

I surveyed lots of people in the nuclear industry and made a list of reforms that most people agreed on

Posted on: 2025-05-23

The story of the TOPAZ-II space reactors

In the early 90s, the US bought 6 exotic TOPAZ-II space reactors from the USSR. Many interesting things happened next.

Posted on: 2025-05-13

The Clinch River Breeder Reactor Project films

We found 27 films about the Clinch River Breeder Reactor Plant Project and started digitizing them.

Posted on: 2025-05-02

The Aircraft Reactor Experiment positive temperature coefficient of reactivity

An interesting reactor physics and history lesson explaining the origin of molten salt fluid fuel nuclear reactors

Posted on: 2025-03-15

Armour Research Reactor

The Armour Research Reactor was a small homogeneous-type nuclear reactor with uranyl sulfate fuel dissolved in water. It was installed at the Illinois Institute of...

Posted on: 2025-03-06

A nuclear startup will probably not be the next SpaceX

For the last decade in nuclear, it’s been in vogue to make comparisons to SpaceX. It’s understandable why: In 2008, launch services were a stilted...

Posted on: 2025-02-25

See all news