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ID: 538636
Title: Gravitational Waves: How Einstein's spacetime ripples reveal the secrets of the universe
Author: Brian Clegg
Narrator: James Gillies
Format: Unabridged
Length: 04:53:00
Language: English
Release date: 09-07-21
Publisher: Dreamscape Media, LLC
Genres: Science & Technology, Astronomy & Physics
Summary:
On September 14, 2015, after fifty years of searching, gravitational waves were detected for the first time, and astronomy changed forever. Up until then, investigation of the universe had depended on electromagnetic radiation: visible light, radio, X-rays, and the rest. But gravitational wavesripples in the fabric of space and timeare unrelenting, passing through barriers that stop light dead. At the two 2.5 mile long LIGO observatories in the US, scientists developed incredibly sensitive detectors, capable of spotting a movement 100 times smaller than the nucleus of an atom. In 2015, they spotted the ripples produced by two black holes spiraling into each other, setting spacetime quivering. This was the first time black holes had ever been directly detectedand it promises far more for the future of astronomy.