We’re not quite sure how old we are — cosmologically, that is. The main methods scientists use to measure the age of the universe don’t agree with each other. Many physicists hope a newly applicable technique that incorporates gravitational-wave observations will solve this age discrepancy once and for all. But this new technique may not be as straightforward as researchers hoped. A new paper by Hsin-Yu Chen, a postdoc at the MIT Kavli Institute for Astrophysics and Space Research, describes a potential problem with the method that, if not addressed,…
