Reports suggest the justices are favoring Texas, though a ruling in the state’s favor could counter its recent efforts at ...

By the end of the year the physicist Werner Heisenberg had calculated that nuclear fission chain reactions might be possible. When slowed down and controlled in a "uranium machine" (nuclear ...

But the technology required to implement this principle efficiently and safely is enormously complex. The fission chain reaction must be maintained at the correct rate and quickly adjusted or stopped ...

The start-up, backed by Sam Altman, has agreed to a number of partnerships. The stock has more than doubled so far this year.

Any fission reactor basically works the same ... If you balance it right, the atoms breaking apart will cause a chain reaction that sustains itself. That is, neutrons hit atoms, releasing more ...

Most new nuclear fission reactors being built today are of the light water reactor (LWR) type, which use water for neutron moderation into thermal neutrons as well as neutron capture. While ...

After confirming that the reactor has reached a critical state where nuclear fuel is sustaining a fission chain reaction, the reactor will start generating electricity as early as Nov. 7.

These newly released neutrons cause other uranium nuclei in the fuel rods to split, and so on, creating a nuclear fission chain reaction. In pressurized water reactors, the energy released during ...

Each fission reaction releases a huge amount of energy (about 200 MeV) but requires a chain reaction for the reactor to remain self-sustaining. By comparison, a fusion reactor generates an ...