Scientists have been building nuclear weapons for more than 80 years, but crafting this technology remains a challenge.

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 ...

There are some potentially valid criticism about the Nuclear Salt Water Rocket (NSWR). The criticisms highlight real physical ...

In nuclear fission, atoms such as U-235 or Pu-239 split when a neutron hits them, releasing energy in the form of heat (along with more neutrons that can continue the chain reaction). This heat ...

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

Small modular reactors are compact nuclear reactors that can be combined to create large-scale power plants. Here, authors demonstrate the practical feasibility of a multi-modular design in the ...

Yet despite improvements in the design of nuclear-fission reactors ... but requires a chain reaction for the reactor to remain self-sustaining. By comparison, a fusion reactor generates an ...

Natural fission requires specific environmental factors, including rich uranium deposits and groundwater, in combination with the correct geological makeup, to support the nuclear chain reaction. How ...

Chinese engineers identify a design flaw in NASA's lunar nuclear reactor, suggesting improvements that could boost efficiency ...