Galaxy

by James Geach

ISBN: 9781789141337

Published: 2019-08

Each night, we are able to gaze up at the night sky and look at the thousands of stars that stretch to the end of our individual horizons. But the stars we see are only those that make up our own Milky Way galaxy--but one of hundreds of billions of galaxies in the whole of the universe, each separated by inconceivably huge tracts of empty space. In this book, astrophysicist James Geach tells the rich stories of both the evolution of galaxies and our ability to observe them, offering a fascinating history of how we've come to realize humanity's tiny place in the vast universe. Taking us on a compelling tour of the state-of-the-art science involved in mapping the infinite, Geach offers a first-hand account of both the science itself and how it is done, describing what we currently know as well as that which we still do not. He goes back one hundred years to when scientists first proved the existence of other galaxies, tracking continued improvements in our ability to collect and...