Astronomers Use a Neutron Star Merger to Measure Cosmic Expansion

Scientists from Swinburne University of Technology and CSIRO have used data from a neutron star merger to gain a better understanding of the universe's expansion rate, potentially resolving a longstanding debate over the Hubble Constant. This breakthrough comes from combining observations of gravitational waves with traditional telescope data, offering a new method for measuring cosmic expansion. The resolution of this discrepancy could fundamentally alter our understanding of the universe's age and its future evolution, highlighting the importance of precise measurements in cosmology.