All of the uranium in the bomb dropped on Hiroshima was enriched in Oak Ridge, including at the K-25 gaseous diffusion plant, ...

The U.S. government wants to select "disparate" locations where it could eventually make bomb-grade uranium again.

A single kilogram of uranium-235 (the most popular fissile isotope of uranium) can theoretically produce the same amount of power as 1.5 million kilograms of coal. Nuclear fission also doesn’t ...

These documents include its having been logged in the boat’s manifest (and besides an eyewitness account of it having been labeled “U-235," the correct isotope of enriched uranium).

Molten Salt Reactors (MSRs) are nuclear fission reactors in which either the fuel and/or the coolant is a molten salt. Molten salt is salt which liquifies at elevated temperatures and can store ...

However, if Israeli intelligence services conclude that Iran is just weeks or even days away from obtaining its first nuclear ...

It either must be enriched—made more concentrated in a rare form of uranium (U-235)—or converted into plutonium (Pu-239). Heavy water can play a role in breeding weapons-grade plutonium from ...

Iran’s 60% level enriched uranium had increased to 275 kilograms, an increase of approximately one full nuclear weapon’s ...

LIS Technologies, which stands for Laser Isotope Separation, is developing lasers to excite and extract the uranium-235 isotope that powers nuclear reactors. It was one of six companies selected ...