We tour the Vatican's meteorite collection and learn how astronomy progresses despite its dearth of tactile evidence. It seeks to prove that not all religion is hostile to science.

    Ask them the meaning of 'relativity' and few of them will be able to tell you what it is.The basic principles of relativity have not changed since Russell first published his lucid guide for the general reader. The ABC of Relativity is Bertrand Russell's most brilliant work of scientific popularisation. With marvellous lucidity he steers the reader who has no knowledge of maths or physics through the subtleties of Einstein's thinking. In easy, assimilable steps, he explains the theories of special and general relativity and describes their practical application to, amongst much else, discoveries about gravitation and the invention of the hydrogen bomb.

    It follows that the belief that there is a significant chance that we will one day become posthumans who run ancestor-simulations is false, unless we are currently living in a simulation. A number of other consequences of this result are also discussed.

    Professor Westfall treats all aspects of Newton's career, but his account centres on a full description of Newton's achievements in science. Thus the core of the work describes the development of the calculus, the experimentation that altered the direction of the science of optics, and especially the investigations in celestial dynamics that led to the law of universal gravitation.

    We start counting our fingers and toes and end up balancing checkbooks and calculating risk. So powerful is the appeal of numbers that many people ascribe to them a mystical significance. Other numbers go beyond the supernatural, working to explain our universe and how it behaves. In Cosmic Numbers, mathematics professor James D. Stein traces the discovery, evolution, and interrelationships of the numbers that define our world. Everyone knows about the speed of light and absolute zero, but numbers like Boltzmann’s constant and the Chandrasekhar limit are not as well known, and they do far more than one might imagine: They tell us how this world began and what the future holds. Much more than a gee-whiz collection of facts and figures, Cosmic Numbers illuminates why particular numbers are so important—both to the scientist and to the rest of us.

    A scientific evaluation of the evidence for and (mostly) against man’s evolution on Planet Earth, by a leading environmentalist and ecologist.Including:An evaluation of the thirteen leading hypothesesSeventeen factors which suggest we are not from EarthHow did we get here?When did we get here?What is our home planet like?The most likely stars that our home planet orbitsIf the aliens are out there why can’t we detect them?Are we the aliens?In this fascinating book Dr Ellis Silver provides answers to all of these questions, based on current evidence and thinking in the scientific community and elsewhere.

    With the Big Bang, it went from a state of unimaginable density to an all-encompassing cosmic fireball to a simmering fluid of matter and energy, laying down the seeds for everything from dark matter to black holes to one rocky planet orbiting a star near the edge of a spiral galaxy that happened to develop life. But what happens at the end of the story? In billions of years, humanity could still exist in some unrecognizable form, venturing out to distant space, finding new homes and building new civilizations. But the death of the universe is final. What might such a cataclysm look like? And what does it mean for us? Dr. Katie Mack has been contemplating these questions since she was eighteen, when her astronomy professor first informed her the universe could end at any moment, setting her on the path toward theoretical astrophysics. Now, with lively wit and humor, she unpacks them in The End of Everything, taking us on a mind-bending tour through each of the cosmos’ possible finales: the Big Crunch; the Heat Death; Vacuum Decay; the Big Rip; and the Bounce. In the tradition of Neil DeGrasse’s bestseller Astrophysics for People in a Hurry, Mack guides us through major concepts in quantum mechanics, cosmology, string theory, and much more, in a wildly fun, surprisingly upbeat ride to the farthest reaches of everything we know.

    Whether they've arrived via rocket, flying saucer, or plain old teleportation, they've been invading, infiltrating, or inspiring us for decades, and they've fascinated moviegoers and television watchers for more than fifty years. About half of us believe that aliens really exist, and millions are convinced they've visited Earth. For twenty-five years, SETI has been looking for the proof, and as the program's senior astronomer, Seth Shostak explains in this engrossing book, it's entirely possible that before long conclusive evidence will be found. His informative, entertaining report offers an insider's view of what we might realistically expect to discover light-years away among the stars. Neither humanoids nor monsters, says Shostak; in fact, biological intelligence is probably just a precursor to machine beings, enormously advanced artificial sentients whose capabilities and accomplishments may have developed over billions of years and far exceed our own. As he explores what, if anything, they would tell us and what their existence would portend for humankind and the cosmos, he introduces a colorful cast of characters and provides a vivid, state-of-the-art account of the past, present, and future of our search for extraterrestrial intelligence.

    This book chronicles the most amazing and secretive research project in recorded history. We all know something is out there, we're just not sure exactly what. This book begins to provide some solid clues.

    After reading it, your view of reality will never be the same.The owl has held a place of reverence and mystique throughout history. And as strange as this might seem, owls are also showing up in conjunction with the UFO experience.Mike Clelland has collected a wealth of first-hand accounts in which owls manifest in the highly charged moments that surround alien contact. There is a strangeness to these accounts that defy simple explanations. This book explores implications that go far beyond what more conservative researchers would dare consider.But the owl connection encompasses more than the UFO experience. It also includes profound synchronicities, ancient archetypes, dreams, shamanistic experiences, personal transformation, and death. From the mythic legends of our ancient past to the first-hand accounts of the UFO abductee, owls are playing some vital role.This is also a deeply personal story. It is an odyssey of self-discovery as the author grapples with his own owl and UFO encounters. What plays out is a story of transformation with the owl at the heart of this journey..NOTE: This book has been updated. Several new stories have been added, some redundancies have been removed, and the text has been streamlined with typos cleaned up!

    For even as she sets out to determine how big “really big” may be, Levin gives us an intimate look at the day-to-day life of a globe-trotting physicist, complete with jet lag and romantic disturbances.Nimbly synthesizing geometry, topology, chaos and string theories, Levin shows how the pattern of hot and cold spots left over from the big bang may one day reveal the size and shape of the cosmos. She does so with such originality, lucidity—and even poetry—that How the Universe Got Its Spots becomes a thrilling and deeply personal communication between a scientist and the lay reader.

    The effects of homeopathy don’t go away under rigorous scientific conditions. The laws of nature aren’t what they used to be. Thirty years on, no one has an explanation for a seemingly intelligent signal received from outer space. The US Department of Energy is re-examining cold fusion because the experimental evidence seems too solid to ignore. The placebo effect is put to work in medicine while doctors can’t agree whether it even exists.In an age when science is supposed to be king, scientists are beset by experimental results they simply can’t explain. But, if the past is anything to go by, these anomalies contain the seeds of future revolutions. While taking readers on an entertaining tour d’horizon of the strangest of scientific findings – involving everything from our lack of free will to Martian methane that offers new evidence of life on the planet – Michael Brooks argues that the things we don’t understand are the key to what we are about to discover.This mind-boggling but entirely accessible survey of the outer limits of human knowledge is based on a short article by Michael Brooks for New Scientist magazine. It became the sixth most circulated story on the internet in 2005, and provoked widespread comment and compliments (Google “13 things that do not make sense” to see).Michael Brooks has now dug deeply into those mysteries, with extraordinary results.

    It is the airbase where test flights of our top-secret experimental military aircraft are conducted and --not coincidentally--where the conspiracy theorists insist the Pentagon is hiding UFOs and aliens. This is Dreamland--or Area 51. For Phil Patton, the idea of writing a travel account of a place he couldn't actually visit was irresistible. What he found was a world where Chick Yeager and the secret planes of the Cold War converged with the Nevada Test Site and alien landings at Roswell. A think tank for aviation engineering, Dreamland can be seen from a summit outside the base's perimeter, a hundred miles north of Las Vegas. On Freedom Ridge, groups of airplane buffs gather with their camouflage outfits and binoculars. These are the Stealth chasers, the Skunkers, guys with code names like Agent X and Zero, hoping for a glimpse of the rumored raylike shapes of planes like Black Manta and " the mother ship." The most mysterious craft is Aurora, the successor to the legendary U-2, said to run on methane and fly as fast as Mach 6. Scanning the same horizon, the UFO buffs are looking for the hovering lights and doughnut-shaped contrails of alien aircraft. Are they looking at something sinister and mysterious? Imagined? Or more terrestrial than they think? Dreamland shows how much we need mystery in the information age, and how the cultures of nuclear power and airpower merge with the folklores of extraterrestrials and earthly conspiracies.Patton found people who found themselves in the mysteries of the place. John Lear, the son of aviation pioneer Bill Lear--who gave his name to the jet--served as a pilot for the CIA's Air America, but back home, he became fascinated by UFOs and eventually believed in it all: the underground bases, the alien-human hybrids, the secret treaties. But was he a true believer, or part of a disinformation campaign? Bob Lazar seems to know when the saucers will come, and has made three clear sightings at night along Dreamland's perimeter, but is his story real, or a vision of what's possible? Dreamland is an exploration of America's most secret place: the base for our experimental airplanes, the fount of UFO rumors, an offshoot of the Nevada Test Site. How this " blackspot" came to exist--its history, its creators, its spies and counterspies--is Phil Patton's tale. He tunnels into the subcultures of the conspiracy buffs, the true believers, and the aeronautic geniuses, creating a novelistic tour de force destined to make us all rethink our convictions about American know-how--and alien inventiveness.

    Titan Unveiled is one of the first general interest books to reveal the startling new discoveries that have been made since the arrival of the Cassini-Huygens mission to Saturn and Titan.Ralph Lorenz and Jacqueline Mitton take readers behind the scenes of this mission. Launched in 1997, Cassini entered orbit around Saturn in summer 2004. Its formidable payload included the Huygens probe, which successfully parachuted down through Titan's atmosphere in early 2005, all the while transmitting images and data--and scientists were startled by what they saw. One of those researchers was Lorenz, who gives an insider's account of the scientific community's first close encounter with an alien landscape of liquid methane seas and turbulent orange skies. Amid the challenges and frayed nerves, new discoveries are made, including methane monsoons, equatorial sand seas, and Titan's polar hood. Lorenz and Mitton describe Titan as a world strikingly like Earth and tell how Titan may hold clues to the origins of life on our own planet and possibly to its presence on others.Generously illustrated with many stunning images, Titan Unveiled is essential reading for anyone interested in space exploration, planetary science, or astronomy.-- "Lunar and Planetary Information Bulletin"

    It discusses how to plan your stargazing and what you can see with your eyes, as well as how to choose binoculars and telescopes and what you can see using them. The book also offers seasonal star charts and constellation charts and gives readers specific objects to look for in the sky. This guide from Royal Observatory Greenwich provides all you need to know to get started in stargazing and discover the universe.