On 14 September 2015, after 50 years of searching, gravitational waves were detected for the first time and astronomy changed for ever.

At the two 4-kilometre 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.

What they saw were ripples produced by two black holes spiralling into each other, setting spacetime quivering. 

This was the first time black holes had ever been directly detected and it promises far more for the future of astronomy. 

In this book, Brian Clegg presents a compelling story of human technical endeavour and a new, powerful path to understand the workings of the universe.

Product Information:
• ISBN: 9781785783203
• Author: Brian Clegg
• Publisher: Icon Books Ltd
• Format: Paperback
• Pages: 176
• Dimensions: 19.56 x 12.95 x 1.78 cm