China's FAST telescope finds key evidence for nanohertz gravitational waves

STORY: China's FAST telescope finds key evidence for nanohertz gravitational waves DATELINE: June 29, 2023 LENGTH: 00:01:42 LOCATION: GUIYANG, China CATEGORY: TECHNOLOGY SHOTLIST: 1. various of FAST telescope 2. various of scientists and their research work with FAST telescope 3. various of images caught by FAST telescope STORYLINE: China's FAST telescope has found key evidence for the existence of nanohertz gravitational waves. The research, conducted by scientists from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) and other institutes, was published in the journal Research in Astronomy and Astrophysics Thursday. Gravitational waves are the "ripples" produced by massive objects such as black holes as they rapidly move through the fabric of spacetime. The scientists monitored 57 millisecond pulsars with regular cadence for 41 months by taking advantage of the high sensitivity of FAST. Eventually, they found key evidence for quadrupole correlation signatures compatibl