Many scientists say “subcritical” experiments and computer simulations make nuclear weapons testing unnecessary.

In April of 1988, in a joint effort between the Sandia Laboratories, the United States Government, and the Japanese Muto ...

A research team led by GE Hitachi Nuclear has successfully tested an innovative new building block made of steel-concrete ...

GE Hitachi Nuclear's modular steel-concrete composite is one of three technologies the DOE is exploring to cut construction ...

The operator of the crippled Fukushima Daiichi nuclear power plant says it will conduct the second test retrieval of fuel ...

Science News has been covering nuclear physics since our earliest incarnation, starting with scientists’ effort to decode the secrets of the atom. In the 1930s, readers learned about the ...

One type of advanced reactor, a molten salt reactor, uses fuels dissolved in molten salt coolants instead of the solid fuels used in traditional nuclear reactors ... Special structures in the system ...

Brandon Williams, the nominee to lead the National Nuclear Security Administration, said he would recommend reliance on ...

As Iran’s nuclear program advances, the critical question of whether Tehran would need to conduct nuclear tests to ensure its weapons are effective looms over the consciousness of the international ...

The decades-long struggle to find a permanent place to dispose of nuclear waste will continue, probably for many years to ...

The prospective NNSA administrator also said he would advise against resuming explosive nuclear tests, despite former Trump officials' desire to end a self-imposed 1992 moratorium on tests.