Radioactivity, discovered more than 100 years ago and studied by physicists ever since, would seem to be a relatively closed subject in science. However, since the 1960s, the pursuit of at least one ...

Every second in your body, thousands of tiny isotopes are bursting with radioactive decay. And, all around you, imperceptible gamma rays explode in a brilliant but invisible lightshow. And they've ...

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 ...

Discover the fascinating process of radioactive decay, where unstable atoms transform, releasing energy in the form of alpha, beta, and gamma emissions.

Add Yahoo as a preferred source to see more of our stories on Google. The findings of a new study suggest radioactive decay rates — long considered physical constants — are more variable than ...

An international team of researchers has systematically measured the β-decay half-lives of 40 nuclei near calcium-54, providing key experimental data for understanding the structure of extremely ...

It's been seven years since a University of Hawaii telescope spotted a strange object crossing our solar system. One-quarter mile (400 meters) long and maybe ten times as long as it is wide, thus ...

Russia’s state weather agency has reportedly said that it found radioactive isotopes in test samples after an accident at a military test site that killed five people earlier this month. A cloud of ...

That natural, bee-produced sweetener you stir into your tea and lavish on your toast may be laced with cesium-137. It’s a radioactive isotope, Jim Kaste explains, a relic of the atom bomb tests of the ...