Scientists have detected elevated levels of iodine-129, a nuclear activity tracer, in the West Philippine Sea.

Scientists have detected what they described as "unusually high" levels of a radioactive substance called iodine-129 in the ...

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

Known as “islands of inversion,” these regions are found among a sea of normal nuclei. Now, a new island may have been ...

Researchers have detected higher than normal levels of iodine-129 in the West Philippine Sea. This radioactive isotope, ...

The fuel isn't quite everlasting, but it is long-lasting and abundant — and it doesn't produce lung-troubling air pollution.

One of the world's most sophisticated scientific facilities is turning to ultra-low temperatures to try and unravel hidden ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

In the wake of spiraling tensions between the United States and Iran over Tehran’s violent crackdown on protests, analysts ...

The U.S. space agency and the Department of Energy will work together to build a fission reactor on the lunar surface in the ...

Researchers at Los Alamos National Laboratory have, for the first time, used a breakthrough technique with a goal of better ...

A nuclear thermal propulsion engine could cut the travel time in half for future space explorers racing to the Red Planet.