Decay products of U-238 include thorium-234 (Th-234), protactinium-234 (Pa-234), U-234, Th-230, radium-226 (Ra-226), radon-222 (Rn-222), polonium-218 (Po-218), lead-214 ... such as neptunium, ...

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 ...

Over my forty years or so in and around dealing rooms and financial markets, I have heard many theories as to how to approach that problem and have settled on a process that has worked for me ...

A "science nerd" who wanted to collect all the elements of the periodic table could face jail time after ordering radioactive material over the internet.