Radioactive sources contain radioactive material of a particular radionuclide (an unstable form of an element emitting radiation), which can vary based on the application for which the source was ...

Deep in the cosmos, an enigmatic object emits gamma rays at energies more than 100 TeV, an intensity far beyond what we typically observe. Discovered in 2021 by the Large High Altitude Air Shower ...

Spanish astronomers have conducted a near-infrared study of an ultra-high energy gamma-ray source designated LHAASO ...

Tens of thousands of sealed radioactive sources consignments are shipped around the world every year for use in industry, medicine, research, agriculture and education. This week, regulators and ...

Congress asked the National Academies to review the civilian uses of radiation sources that contain radionuclides and the potential replacements for sources that pose a high risk to public health or ...

NASA finds carbon molecules in ancient Martian lake, and scientists admit it is difficult to explain them without life.

What processes other than water and energy could be responsible for creating life on other worlds? This is what a recent study published in the International Journal of Astrobiology hopes to address ...

In places like Chernobyl and Fukushima, where nuclear disasters have flooded the environment with dangerous radiation, it makes sense that life might evolve ways to survive it. But one of the most ...

Think about a garden where flowers bloom beside nuclear reactors. It sounds impossible, yet it's happening right now. Since the Chernobyl disaster in 1986, scientists have watched in amazement as ...

Congress asked the National Academies to review the civilian uses of radiation sources that contain radionuclides and the potential replacements for sources that pose a high risk to public health or ...