For 200 million years, the universe experienced a complete darkness known as the cosmic dark ages. This period followed the ...

Visit NAP.edu/10766 to get more information about this book, to buy it in print, or to download it as a free PDF. p. 12 Your waistline may be spreading: Richard Price, quoted in Zeeya Merali, “Why the ...

I am greatly relieved that the universe is finally explainable. I was beginning to think it was me. As it turns out, physics, like a grating relative, has all the answers. Woody Allen (The New Yorker, ...