However, there is a key difference between atomic weapons and thermonuclear weapons, such as the H-Bomb, because the latter uses nuclear fusion in addition to fission reactions.

Hydrogen bombs, considered nuclear weapons, work using a combination of nuclear fission and fusion. Edward Teller led their development in the 1950s.

They are smaller and less powerful than strategic nuclear weapons, but they can have explosive yields of up to 300 kilotons, or 20 times that of the bomb that destroyed Hiroshima.

In a nutshell, this new non-nuclear hydrogen bomb is a major step in weapon technology, showing that powerful explosives can be made without using nuclear materials.

Yes, the U.S. military is missing nuclear weapons and has been for a long time. You probably would not be surprised to know that the U.S. military has lost a number of small arms over the years ...

North Korea’s state-run broadcaster said Sunday the country had successfully conducted a test of a hydrogen bomb that can be loaded onto its new intercontinental ballistic missiles. The nuclear ...

Middle East News: Discover the secret history of Israel's nuclear program, from its inception in the aftermath of the Holocaust to its strategic implications in Middle Eastern geopolitics. Explore ...

The final rule for clean-hydrogen production would allow some nuclear power plants that are at risk of retirement to produce the gas.

That disruption matters. By demonstrating that psychologically potent, non-nuclear weapons are possible, China’s test begins to erode the monopoly nuclear arms have held over credible deterrence.

Scientists at the Lawrence Livermore National Laboratory announced they successfully maintained a nuclear fusion reaction, which could launch a new phase of clean energy.

For decades, government scientists have toiled away trying to make nuclear fusion work. Will commercial companies sprint to the finish?