Download or read book When Galaxies Collide written by Wayne J. Lutz and published by . This book was released on 2016-11-04 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: When our Milky Way merges with the Andromeda Galaxy in 4.75 billion years, Earth will be facing even bigger problems than a cosmic collision. Worlds separated by thousands of light-years are suddenly thrust together in challenges humans have never imagined.