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Astronomers have identified that our world is 13.7 billion years old. How exactly did they come to the precise final result? How Old Is the Universe? explains to the incredible report of how astronomers resolved one of the very most convincing mysteries in research and, on the way, introduces listeners to important principles and cutting-edge advancements in modern astronomy. The age of our world poses a deceptively simple question, and its answer carries deep implications for research, religion, and philosophy. David Weintraub traces the centuries-old search by astronomers to fathom the secrets of the nighttime sky. Talking about the successes of the visionaries whose discoveries collectively unveiled a fundamental unknown, he shows just how many 3rd party lines of inquiry and far painstakingly gathered research, when fitted alongside one another like parts in a cosmic puzzle, led to the long-sought answer. Astronomers don't believe the world is 13.7 billion years old - they know it. You may too after hearing this booklet. By focusing on one of the very most critical questions about the world and challenging visitors to understand the response, Weintraub familiarizes listeners with the ideas and phenomena in the centre of modern astronomy, including red giants and white dwarfs, cepheid adjustable stars and supernovae, clusters of galaxies, gravitational lensing, dark subject, dark energy and the accelerating world - and much more. Offering a unique historical approach to astronomy, How Old Is the Universe? sheds light on the internal workings of methodical inquiry and uncovers how astronomers grapple with profound questions about the physical mother nature of our world.
