As a result, smoke detectors at that time contained trace amounts of radioactive material; American-made ones contained americium-241, while Soviet-made ones used plutonium-239. The plutonium in ...

This produced the intermediate neptunium-237, which was then transformed into plutonium-238. Pu-238 fueled the first RTG used in space, launched aboard the Navy TRANSIT 4A Navigational Satellite in ...

This, as he found out, isn’t something you should do lightly, as the one he used ended up containing an interesting mix of radioactive materials, including small amounts of plutonium-239 ...

Plutonium discovered at the bottom of the ocean was found to be refuse from a kilonova that exploded close to Earth 10 million years ago. Kilonovas occur when binary neutron stars spiral closer ...

A key aspect of our research is understanding the engineering properties and disposability of potential host phases that could be used to effectively immobilise plutonium. Delivering the necessary ...

Harrison S. Brown is a nuclear chemist and geochemist who worked on ways to separate plutonium from uranium at the Manhattan Project’s Metallurgical Laboratory during the war. The techniques he helped ...

Japan’s plutonium stockpiles in Britain and France totaled 21.8 tons and 15.4 tons, respectively, as of December 2020. Britain shut down its only M OX plant in 2011, which means it can no longer ...