Some atoms are stable, while others seem to fall apart. Lead-208 will probably last forever, while the synthetic isotope technetium-99 exists for just hours. The difference lies in the structure of ...

There is a lot going on inside atomic nuclei. Protons and neutrons are whizzing around and interacting with each other. The movement of the nuclear particles and their intrinsic angular momentum ...

In less than a millionth of a second after a nuclear detonation or a severe nuclear reactor accident, an enormous burst of energy heats the surrounding air and materials. Everything in the vicinity is ...

Discerning whether a nuclear reactor is being used to also create material for nuclear weapons is difficult, but capturing and analyzing antimatter particles has shown promise for monitoring what ...

A constellation of cubesats fitted with special detectors could sniff out nuclear weapons hidden on satellites launched by ...

A ‘nuke sniffer’ has landed in Britain from the US as Donald Trump threatens Iran with more military action. The USAF WC-135R Constant Phoenix jet, which can detect radioactive particles in the air, ...

Although the 1967 Outer Space Treaty bans nuclear weapons in space, there’s currently no way to verify that satellites aren’t ...