The Cosmic Keyhole: How Astronomy Is Unlocking the Secrets of the Universe by William J.H. GaterEnglish | PDF,EPUB | 2009 | 262 Pages | ISBN : 144190512X | 5.71 MB
It is 400 years since Galileo first turned the newly invented telescope towards the heavens and saw things that few had ever seen before. His discoveries, along with those of his contemporaries, completely changed our view of the world.