Fusion startup Zap Energy is adding nuclear fission to its quest for nuclear power, naming Zabrina Johal as CEO to lead the new dual-purpose effort.

An international team of scientists has identified an unexpected region of heavy, neutron-deficient isotopes in the nuclear chart where nuclear fission is predominantly governed by an asymmetric mode.

Parsons, Kansas, may be the site of a California startup's first ever 1-mile-deep nuclear reactor - with support from county commissioners, both Republican Kansas U.S. senators and Democratic Gov.

Deep Fission has started drilling for its first-of-a-kind "gravity reactor" project in Kansas, which places a 15-megawatt reactor 6,000 feet underground to cut operational costs by up to 80%. The ...