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In the mid-1990s, astronomers made history when they began to find planets orbiting stars in the Milky Way. More than eight hundred planets have been found since then, yet none of them is anything like Earth and none could support life. Now, armed with more powerful technology, planet hunters are racing to find a true twin of Earth. Science writer Michael Lemonick has unique access to these exoplaneteers, as they call themselves, and Mirror Earth unveils their passionate quest. Unlike competitors in other races, Geoff Marcy, Bill Borucki, David Charbonneau, Sara Seager, and others actually consult and cooperate with one another. But only one will be the first to find Earth's twin. Mirror Earth tells the story of their competition.
In 1995 two Swiss astronomers discovered a planet circling a star other than our Sun. This changed our perception of the Universe forever, proving that Earth and the other celestial bodies in our Solar System are not alone in outer space. Now, after two decades of exploration, more than 860 planets have been discovered, many of which are completely unlike anything else we know. Some are blacker than coal; some are bathed in molten lava; others are perpetually scoured by hurricane-force winds; some have not one sun but two that rise in the morning, and others are perpetually drowned in global oceans. But as well as strange, uninhabitable lands, there is familiarity too. Some of these alien worlds are strikingly similar to planets in our Solar System. Astronomers now know of planets just like Jupiter, Neptune, Mars and Mercury orbiting stars similar to our Sun, both nearby and deep into space. Authoritatively written and fully up to date on this fast-moving area of science, The Search for the Earth's Twin will take you on a journey through the cosmos via frozen wastelands, slow-moving globes and fiery volcanic bodies, to planets that can - and just might - sustain complex life. The prospect of discovering the Earth's twin is now tantalisingly close.
Embark on an extraordinary cosmic odyssey as you traverse the vast reaches of the universe in "Cosmic Alchemy." In this meticulously crafted masterpiece of science exploration, every chapter is a deep dive into the heart of celestial phenomena, from the birth of stars to the mysteries of dark matter, and from the philosophical ponderings of our cosmic place to the awe-inspiring beauty of the night sky. With engaging prose and a commitment to unraveling the most profound questions of existence, this book takes you on a journey through time and space. You'll witness the dance of celestial bodies, uncover the secrets of the elements, and contemplate the unity of the cosmos. From the wonders of our solar system to the frontiers of interstellar travel, "Cosmic Alchemy" guides you through the cosmos with a blend of scientific rigor and poetic wonder. Prepare to be captivated by the mysteries that still elude our understanding, inspired by the boundless potential of human discovery, and connected to the universe in ways you've never imagined. "Cosmic Alchemy" is more than a book; it's an invitation to explore the wonders of the universe and embrace the cosmic perspective that transcends time and space.
Describes the science of planet hunters, the prospects for the discovery of alien life, and discusses the controversies surrounding extrasolar-planet research.
“How do alien, faraway worlds reveal their existence to Earthlings? Let Donald Goldsmith count the ways. As an experienced astronomer and a gifted storyteller, he is the perfect person to chronicle the ongoing hunt for planets of other stars.” —Dava Sobel Astronomers have recently discovered thousands of planets that orbit stars throughout our Milky Way galaxy. With his characteristic wit and style, Donald Goldsmith presents the science of exoplanets and the search for extraterrestrial life in a way that Earthlings with little background in astronomy or astrophysics can understand and enjoy. Much of what has captured the imagination of planetary scientists and the public is the unexpected strangeness of these distant worlds, which bear little resemblance to the planets in our solar system. The sizes, masses, and orbits of exoplanets detected so far raise new questions about how planets form and evolve. Still more tantalizing are the efforts to determine which exoplanets might support life. Astronomers are steadily improving their means of examining these planets’ atmospheres and surfaces, with the help of advanced spacecraft sent into orbits a million miles from Earth. These instruments will provide better observations of planetary systems in orbit around the dim red stars that throng the Milky Way. Previously spurned as too faint to support life, these cool stars turn out to possess myriad planets nestled close enough to maintain Earthlike temperatures. The quest to find other worlds brims with possibility. Exoplanets shows how astronomers have broadened our planetary horizons, and suggests what may come next, including the ultimate discovery: life beyond our home planet.
Barrie Jones addresses the question "are we alone?", which is one of the most frequently asked questions by scientists and non-scientists alike. In The Search for Life Continued, this question is addressed scientifically, and the author is not afraid to include speculation. Indeed, the author believes beyond reasonable doubt that we are not alone and this belief is based firmly on frontier science of the most imaginative kind. The author concentrates on planetary systems beyond our own but starts with life on Earth, which is the only life we know to exist, and which provides guidance on how best to search for life elsewhere. Planets are the most likely abode of life and so we start the quest with the search for planets beyond the Solar System – exoplanets. The methods of searching are outlined and the nature of hundreds of exoplanetary systems so far discovered described. In the near future we expect to discover habitable Earth-like planets. But are they actually inhabited? How could we tell? All will be revealed. This full color book is written for everybody who wants to stay in close contact with the latest on possible life on other planets.
With a thought-provoking insight into the possibility of life beyond Earth within the universe, the story explores the history of our past, present and the future ahead. It helps our understanding of the ages of the Galaxy, the Solar System and other planetary systems in the Milky Way that could answer mankind?s all speculations on life beyond Earth. This book is an ode to all the great achievements of humanity and to those courageous brave men and women who dared to venture into the mysterious space that is beyond our planet to discover other unknown worlds and rewrite the history of mankind. Answer is Blowing in the Wind also portrays the current developments in space science and technology and space discoveries that are unfolding many unknown secrets of the Universe today.
In the 1980s, Earth and the other planets orbiting the Sun were the only planets known in the universe. Since then, astronomers have found thousands of planets circling other stars. Find out more in Finding Earthlike Planets, one of the titles in the Space Exploration series.
The Search for Aliens: The Rough Guide to Life on Other Worlds is a scientific journey that reaches into our profoundest philosophical and religious desire for answers-and perhaps, also into our deepest dreads. Exobiology, a subject that once seemed nothing more than the realm of science fiction fantasies, is now a thriving professional branch of science, driven by new and startling discoveries on earth as well as by a mass of new data from space probes. This Rough Guide provides the first vivid and completely accessible guide to the most exciting field of modern science: the search for aliens. All the latest research projects are identified, located, and described: everything from radio dishes seeking out intelligent alien signals, to deep oceanic research seeking links between terrestrial organisms and the broader cosmos. It also explores the idea of Panspermia, the notion that asteroids and comets brought biological building blocks to the early earth, which is now firmly on the agenda. Is there any living thing out there? We still don't know, but this book explains why we may be closer than ever to finding out.