Measurements of a key radioactive decay nudge a nuclear clock closer to reality
Scientists detected light emitted when a special type of thorium nucleus decayed
![An overhead photo of the nuclear physics facility ISOLDE at CERN.](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2023/05/053023_ec_nuclear-clock-photon_feat.jpg?fit=1030%2C580&ssl=1)
To observe a radioactive decay that’s key to building a nuclear clock, scientists used the nuclear physics facility ISOLDE at CERN near Geneva (pictured).
CERN