In September 2015, the first direct detection of gravitational waves changed the course of physics. Astronomers now ‘hear’ cosmic events, in addition to ‘seeing’ them. This breakthrough has provided a new sense of exploration for physicists, revealing secrets of the universe previously unknown. The window opened by the Laser Interferometer Gravitational-wave Observatory has led to the detection of over 100 gravitational-wave events, with many more anticipated. Alternative methods, such as pulsar timing arrays and atom interferometry, are being developed to expand the observational range to capture more diverse gravitational waves. These innovative approaches are bringing exciting new possibilities to the field of gravitational-wave science.
https://www.nature.com/articles/d41586-024-02003-6