Advancements in Measuring Universe Expansion and Searching for Merging Black Holes

Researchers from the International Centre for Theoretical Sciences in Bengaluru have proposed a method to measure the universe's expansion rate using gravitational waves from merging black hole pairs. By studying the delay between repeated black hole mergers and utilizing advanced gravitational wave detectors, they aim to calculate the expansion rate without needing precise information about the galaxies or black hole pairs involved. This method could potentially provide accurate measurements of the universe's expansion rate and also serve as a tool to study the properties of dark matter.