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. Source: https://phys.org/news/2020-12-multi-messenger-astronomy-neutron-star-size.html…
Tag: Universe expansion
Rethinking cosmology: Universe expansion may not be uniform (Update)
Astronomers have assumed for decades that the Universe is expanding at the same rate in all directions. A new study based on data from ESA’s XMM-Newton, NASA’s Chandra and the German-led ROSAT X-ray observatories suggests this key premise of cosmology might be wrong. Source: https://phys.org/news/2020-04-basic-assumption-universe.html…