Astrophysicists have, for the first time, measured the temperature of elementary particles in the radioactive afterglow of a neutron star collision, which led to the formation of a black hole. This br ...
Despite once ruling that a substance called phosphogypsum was unsafe for use in road construction projects, the Environmental Protection Agency is now allowing this radioactive material to be used on ...
After spending months inside the ruins of a nuclear reactor at Japan's tsunami-hit Fukushima Daiichi plant, a robot has delivered a small sample of melted nuclear fuel.