RARE OXYGEN ISOTOPE DETECTED AT LAST — AND IT DEFIES EXPECTATIONS

Summary from the TLDR newsletter

Oxygen-28 has been detected for the first time. While the isotope was predicted to be stable, it disintegrated rapidly after creation. Oxygen-28 is an isotope of oxygen with 12 extra neutrons in its nucleus. The new findings mean that physicists might have to update theories of how atomic nuclei are structured.