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 ...

Physicists have found a new “island of inversion” in the nucleus of molybdenum-84, a perfectly balanced atom with equal numbers of protons and neutrons. The discovery upends a decades-old assumption ...

A new experiment using rare-isotope beams has provided new insight into the origin of proton-rich isotopes known as p-nuclei.

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 ...

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 ...

A California-based company has reached an important milestone in its advanced nuclear energy development ...

OTTAWAOTTAWA — Canadian officials have again shut down a nuclear reactor that produces much of the world’s radioactive isotopes used to diagnose cancer patients through medical imaging. Patients in ...

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 ...