A strange form of matter called a time crystal has fascinated physicists for about a decade. These systems move in repeating cycles, even without a steady external push. Now, researchers at New York ...

Add Yahoo as a preferred source to see more of our stories on Google. In this 2018 photo made available by CERN, Nikolai Bondar works on the LHCb Muon system at the European Organization for Nuclear ...

The acoustic properties of an ultracold fermion gas have been measured either side of the superfluid transition temperature in an experiment that has been described as “near perfect” and “beautiful”.