Radioactive isotopes have been discovered by Russia's state weather agency in test samples more than two weeks after a mysterious and deadly explosion earlier this month at a naval weapons testing ...

Researchers have reported new experimental results addressing the origin of rare proton-rich isotopes heavier than iron, ...

MOSCOW, Aug 26 (Reuters) - Russia's state weather agency said on Monday it had found the radioactive isotopes of strontium, barium and lanthanum in test samples after a mysterious accident during a ...

Naturally-occurring deuterium stable isotope ratios can potentially be used to trace water resource use by animals, but estimating the contribution of isotopically distinct water sources requires the ...

If confirmed, a new analysis would double the number of tests the country is known to have conducted and suggest that North Korea is trying to develop powerful warheads for its fledgling nuclear ...

The contamination is also likely to spread beyond shrimp, the bulletin said.

North Korea may have conducted two covert nuclear weapons tests in 2010, according to a fresh analysis of radioisotope data. The claim has drawn scepticism from some nuclear-weapons experts. But if ...

Each day in the United States, roughly 56,000 patients have a test that can help diagnose heart problems, cancer progression in bones and other medical conditions. The most common version is a nuclear ...

PORTLAND, Ore. — You might have thought that scientists had already cataloged the 118 natural elements–from hydrogen to silicon to uranium–and their various isotopes. Unfortunately, only the first ...