Explore the world of astronomy with essential quotes and bold graphics to illustrate over 100 of the universe's most important ideas.The Astronomy Book is an extraordinary voyage of discovery through the cosmos. Venture from ancient speculations about the universe of nature, to the mind-boggling theories of modern science, including those of Albert Einstein and Stephen Hawking. Learn about the incredible histories of Halley's comet, Hubble's telescope and NASA's modern-day trailblazing, as well as the discoveries of famous figures including Ptolemy, Isaac Newton, Walter Adams, Carl Sagan, and Alan Stern. The Astronomy Book, the section of DK's hot-selling Big Ideas series, is the perfect introduction to our ideas about space, time, and the physics of the cosmos.