Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

Hydrogen bombs and atomic bombs are both nuclear weapons that can cause mass destruction. Most US nuclear weapons today were made in the 1950s and 1960s and are H-bombs. H-bombs are more powerful, ...

Nuclear bombs do not rely on size, they rely on physics. Here is how chain reactions and hydrogen bombs unleash power on a ...

Atomic bombs work via a process called nuclear fission that involves atom splitting. Shortly after scientists discovered nuclear fission, the possibility of a bomb was quickly realized. Albert ...

Stephen Shankland worked at CNET from 1998 to 2024 and wrote about processors, digital photography, AI, quantum computing, computer science, materials science, supercomputers, drones, browsers, 3D ...

This article is part of “The New Nuclear Age,” a special report on a $1.5-trillion effort to remake the American nuclear arsenal. In early nuclear bombs, like the ones the U.S. dropped on Japan in ...

Instead of burying plutonium and pretending it has disappeared, we can put it to work. With advanced fast reactors, like those being developed by private American innovators, stored fuel will be ...

A refrigerator-sized nuclear fission reactor built by NASA just completed a significant test. Known as KRUSTY (an acronym that stands for Kilopower Reactor Using Stirling Technology), the lightweight ...

A national wildlife refuge now surrounds a former nuclear weapons production facility near Denver, Colo. (Photo via U.S. Department of Energy) WASHINGTON (CN) — Environmental activists filed a lawsuit ...