The first breeder reactor, i.e., one that produces more nuclear fuel material as a byproduct than is used to generate energy, went online almost 75 years ago. So, it's hardly some form of sci-fi ...

Tests carried out on high burnup fast reactor fuel as part of a collaboration between the USA and Japan are the first of their kind carried out in more than 20 years, and will provide crucial new data ...

Oklo Inc. (OKLO) is working on a next-generation nuclear design called the Aurora powerhouse. At its core is a liquid-metal-cooled, metal-fueled fast reactor, a technology that has already been tested ...