Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A ...

GE HealthCare agreed to acquire SOFIE Biosciences for $945 million, targeting SOFIE's 21-cyclotron US manufacturing network. The deal's logic lies in nuclear physics: fluorine-18 PET tracers decay in ...

You may own a few radioactive gadgets without knowing it. We're talking about actual radioactive material here, not radiation ...

Hickory dickory dock, this nucleus could make a great clock. A special variety of the element thorium hosts an atomic nucleus that could be used to keep time, scientists say. In a first, researchers ...

For the first time, Northwestern University physicists have coaxed a single positron—the antimatter counterpart of an ...

Researchers at the National Institute of Standards and Technology (NIST) have demonstrated a new and faster method for detecting and measuring the radioactivity of minuscule amounts of radioactive ...

Scientists did not arrive at Earth’s age from one clue. Several very different measurements keep pointing toward the same ...

In this lesson, students will simulate the randomness of decay in radioactive atoms and visualize the half-life of a sample radioactive element. This lesson can be completed in two (2) 45-minute class ...

Observing the recoil caused by a single radioactive decay could help physicists spot exotic particles and possibly even dark matter. Radioactive decay is ubiquitous. It occurs everywhere on Earth and ...

We think of radioactive material as something buried away in bunkers with bombs, power plants, and maybe some exotic medical equipment. But turns out, there are little bits of radiation in the water, ...

Scientists have caught a handful of ghost particles escaping from deep inside Earth, leaving experts to wonder: What if our planet’s interior isn’t as evenly mixed as we thought? The particles, ...