Fission can occur spontaneously, via natural decay, or through controlled chain reactions initiated by people. Either way, the process releases a tremendous amount of energy. Nuclear power plants ...

Scientists have further developed a way of controlling nuclear fusion reactions, marking another forward step in the rush to achieve a clean, virtually limitless source of energy. Nuclear fusion ...

Fermi's task, however, was to create a controlled nuclear reaction; that is, to split the atom without creating a deadly explosion. Theoretically, it was possible. During fission, a fast-moving ...

Physicist Hans Bethe would go on to rebut the issue once more, noting that nuclear fusion reactions are only sustained under great pressure, something not present in the atmosphere or the Earth ...

Earlier this year, ARPA-E, a US government agency dedicated to funding advanced energy research, announced a handful of grants for a field it calls “low-energy nuclear reactions,” or LENR.

Thorium reactor by-products cannot make nuclear bombs since the wrong isotopes are produced. They produce less radioactive waste, and these by-products are safe after about 100 years, versus ...