At least 30 additional nuclear warheads for new missiles under production have been added to India’s 160 existing warheads for operational launchers, taking the total such warheads with the country to ...

A US study estimates India may have produced enough plutonium for 140–225 nuclear warheads and assembled up to 190, with its nuclear stockpile expected to grow further as new systems develop.

The Manhattan Project produced the plutonium that changed history, but left behind a radioactive legacy America is still ...

Add Yahoo as a preferred source to see more of our stories on Google. A person reflects in the window of the U.S. Department of Energy, with the official portrait of U.S. President Donald Trump on the ...

Plutonium is one of the most complex elements in the periodic table. First synthesized and isolated in 1940 by scientists at the University of California, Berkeley, plutonium has been studied closely ...

Oxidation is the process where atoms lose electrons during a chemical reaction. Among the radioactive elements, neptunium and plutonium are much harder to oxidize than uranium. To study these elements ...

This week's chemical element is plutonium, which has the symbol Pu and the atomic number 94. Inspired by the previous two elements in the periodic table, uranium and neptunium, plutonium's name came ...

The Nuclear Nonproliferation Treaty (NPT), whose tenth review conference is coming up in August, is in trouble, and not only because of the crescendo of complaints about the failure of the ...

Nuclear tests, such as Operation Redwing in 1956, deposited radioactive plutonium and cesium in the atmosphere. Photo via National Nuclear Security Administration/Wikimedia Particles of radioactive ...

Ultrahigh-resolution mass spectrometry measured plutonium and samarium isotope ratios in irradiated uranium directly, ...