A combination of astrophysical measurements has allowed researchers to put new constraints on the radius of a typical neutron star and provide a novel calculation of the Hubble constant that indicates the rate at which the universe is expanding.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/multimesseng.jpg)
Source:
https://phys.org/news/2020-12-multi-messenger-astronomy-neutron-star-size.html