Nuclear weapons haven’t been tested in the United States since 1992. Find out why, and what could happen if the hiatus ends.

Nuclear and plasma physics form complementary pillars in our understanding of the fundamental forces and states of matter. Nuclear physics investigates the structure, dynamics and interactions of ...

Particle and nuclear physics evokes evokes images of huge accelerators probing the extremes of matter. But in this round-up ...

Researchers have combined theory and experiments to show that nuclear polarization does not limit studies of muonic atoms, clearing the way for new nuclear physics experiments. University of ...

The nucleus of an atom is now the modern version of sand flowing through an hourglass. Researchers have spent 15 years trying to increase accuracy in timekeeping. The U.S. standard currently relies on ...

Breaking down how nuclear explosions function using basic atomic physics and what causes their devastating power.

Our account of the strong nuclear force is full of imaginative terms. Six flavors of quarks have color charges of red, green and blue, which dictate how they bind to form particles like protons and ...

Why do some elements decay in minutes, while others last billions of years? Certain "magic numbers" of nuclear particles may make all the difference. When you purchase through links on our site, we ...

How many nuclear weapons does Russia have in 2025? On August 29th, 1949, the Soviet Union tested its first nuclear weapon—making it the second nuclear power after the United States. The US and the ...

Scientists have been building nuclear weapons for more than 80 years, but crafting this technology remains a challenge. When you purchase through links on our site, we may earn an affiliate commission ...