Planets Ours And Others PDF Download
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Author | : Therese Encrenaz |
Publisher | : World Scientific Publishing Company |
Total Pages | : 206 |
Release | : 2013-09-26 |
Genre | : Science |
ISBN | : 9814525170 |
Download Planets: Ours And Others - From Earth To Exoplanets Book in PDF, ePub and Kindle
What is a planet? The answer may seem obvious; still, the definition of a planet has continuously evolved over the centuries, and their number has changed following successive discoveries. In 2006, the decision endorsed by the International Astronomical Union to remove Pluto from the list of planets has well illustrated the difficulty associated with their definition. The recent discovery of hundreds of exoplanets around nearby stars of our Galaxy opens a new and spectacular dimension to astrophysics. We presently know very little about the physical nature of exoplanets. In contrast, our knowledge on solar system planets has made huge progress over the past decades, thanks, especially, to space planetary exploration. The purpose of this book is first to characterize what planets are, in their global properties and in their diversity. Then, this knowledge is used to try to imagine the physical nature of exoplanets, starting from the few parameters we know about them. Throughout, we keep in mind the ultimate question of the search for possible extraterrestrial life: Could life exist or have existed in the solar system and beyond?Thérèse Encrenaz is Emeritus Senior Scientist at the Centre National de la Recherche Scientifique. She works at the Observatoire de Paris, at the Laboratoire d'Etudes Spatiales et d'Instrumentation en Astrophysique (LESIA). She is a specialist of the study of planetary atmospheres, and has been involved in several space missions.
Author | : Thérèse Encrenaz |
Publisher | : |
Total Pages | : 0 |
Release | : 2014 |
Genre | : Extrasolar planets |
ISBN | : |
Download Planets Book in PDF, ePub and Kindle
Author | : Michael D. Lemonick |
Publisher | : Bloomsbury Publishing USA |
Total Pages | : 259 |
Release | : 2012-10-16 |
Genre | : Science |
ISBN | : 0802779026 |
Download Mirror Earth Book in PDF, ePub and Kindle
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.
Author | : Emanuel Swedenborg |
Publisher | : New Century Edition |
Total Pages | : 0 |
Release | : 2018 |
Genre | : Body, Mind & Spirit |
ISBN | : 9780877854173 |
Download Other Planets Book in PDF, ePub and Kindle
Building on the eighteenth-century fascination with the possibility of life on other worlds and with traveler's tales of other cultures, this work describes life on other planets in our solar system and elsewhere in the universe. Swedenborg undertook this work specifically to demonstrate that Jesus is God not just of planet Earth but also of the universe as a whole.
Author | : Robert A. Heinlein |
Publisher | : Baen Publishing Enterprises |
Total Pages | : 286 |
Release | : 2008-08-01 |
Genre | : Juvenile Fiction |
ISBN | : 1618246852 |
Download Between Planets Book in PDF, ePub and Kindle
The message had seemed simple, yet it was more complex than Don could have imagined. He was being called from Earth to an alien world for reasons unknown¾save only that his life depended on it. But setting out for Mars and getting there in good shape turned out to be a lot more complicated than Don ever would have guessed possible. It was trouble enough being inexplicably hounded by Earth's secret police. But when he was hijacked by Venusian rebels, Don suddenly realized that he was trapped in the center of a war between worlds that could change the fate of the Solar System forever! At the publisher's request, this title is sold without DRM (Digital Rights Management).
Author | : Elizabeth Tasker |
Publisher | : Bloomsbury Publishing |
Total Pages | : 353 |
Release | : 2017-09-07 |
Genre | : Science |
ISBN | : 1472917758 |
Download The Planet Factory Book in PDF, ePub and Kindle
Forget about rockets to Mars – the future of space science lies with the search for exoplanets Twenty years ago, the search for planets outside the Solar System was the preserve of science-fiction writers. Now it's one of the fastest-growing fields in astronomy, with thousands of exoplanets discovered to date, and the number rising fast. These new-found worlds are more alien than anything in fiction. Planets larger than Jupiter with years lasting a week; others with two suns lighting their skies, or with no sun at all. Planets with diamond mantles supporting oceans of tar; possible Earth-sized worlds with split hemispheres of perpetual day and night; waterworlds drowning under global oceans and volcanic lava planets awash with seas of magma. The discovery of this diversity is just the beginning. There is a whole galaxy of possibilities. The Planet Factory tells the story of these exoplanets. What can we learn about these faraway surface environments and planetary atmospheres? And do the results hint at the tantalising possibility of alien life?
Author | : Ray Jayawardhana |
Publisher | : Princeton University Press |
Total Pages | : 280 |
Release | : 2013-04-21 |
Genre | : Science |
ISBN | : 1400846544 |
Download Strange New Worlds Book in PDF, ePub and Kindle
An insider's look at the cutting-edge science of today's planet hunters In Strange New Worlds, renowned astronomer Ray Jayawardhana brings news from the front lines of the epic quest to find planets—and alien life—beyond our solar system. Only in the past two decades, after millennia of speculation, have astronomers begun to discover planets around other stars—thousands in fact. Now they are closer than ever to unraveling distant twins of the Earth. In this book, Jayawardhana vividly recounts the stories of the scientists and the remarkable breakthroughs that have ushered in this extraordinary age of exploration. He describes the latest findings--including his own—that are challenging our view of the cosmos and casting new light on the origins and evolution of planets and planetary systems. He reveals how technology is rapidly advancing to support direct observations of Jupiter-like gas giants and super-Earths—rocky planets with several times the mass of our own planet—and how astronomers use biomarkers to seek possible life on other worlds. Strange New Worlds provides an insider's look at the cutting-edge science of today's planet hunters, our prospects for discovering alien life, and the debates and controversies at the forefront of extrasolar-planet research. In a new afterword, Jayawardhana explains some of the most recent developments as we search for the first clues of life on other planets.
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 161 |
Release | : 1990-02-01 |
Genre | : Science |
ISBN | : 0309042461 |
Download The Search for Life's Origins Book in PDF, ePub and Kindle
The field of planetary biology and chemical evolution draws together experts in astronomy, paleobiology, biochemistry, and space science who work together to understand the evolution of living systems. This field has made exciting discoveries that shed light on how organic compounds came together to form self-replicating molecules-the origin of life. This volume updates that progress and offers recommendations on research programs-including an ambitious effort centered on Mars-to advance the field over the next 10 to 15 years. The book presents a wide range of data and research results on these and other issues: The biogenic elements and their interaction in the interstellar clouds and in solar nebulae. Early planetary environments and the conditions that lead to the origin of life. The evolution of cellular and multicellular life. The search for life outside the solar system. This volume will become required reading for anyone involved in the search for life's beginnings-including exobiologists, geoscientists, planetary scientists, and U.S. space and science policymakers.
Author | : Robert E. Wells |
Publisher | : Albert Whitman & Company |
Total Pages | : 37 |
Release | : 2009-09-01 |
Genre | : Juvenile Nonfiction |
ISBN | : 0807593532 |
Download What's So Special about Planet Earth? Book in PDF, ePub and Kindle
Move to another planet? Sounds interesting! In our imaginary spaceship, let's check out the planets in our solar system. Mercury is closest, but it has no air, and it's either sizzling hot or bitterly cold. The atmosphere on Venus is poisonous; plus, human beings would cook there. Mars might work, but you'd always have to be in a protective shelter. And if you got to the outer planets, you couldn't even land as they are mostly made of gas! Our home planet is looking good. Why is Earth so comfortable for plants, animals, and people? As Robert E. Wells explains, it's because of our just-right position form the sun, marvelous atmosphere, and abundant water. Our planet is very special and perfect for us, and that's why we must do all we can to keep Earth healthy.
Author | : Gregory L. Vogt |
Publisher | : Lerner Publications |
Total Pages | : 44 |
Release | : 2010-01-01 |
Genre | : Juvenile Nonfiction |
ISBN | : 0761359451 |
Download Is There Life on Other Planets? Book in PDF, ePub and Kindle
There is no gravity in space. The North Star never changes its position in the sky. Earth’s shadow causes the phases of the moon. You may have heard these common sayings or beliefs before. But are they really true? Can they be proven using science? Let’s investigate seventeen statements about space and find out which ones are right, which ones are wrong, and which ones still stump scientists! Find out whether astronauts really landed on the moon! Discover whether it’s true that the same side of the Moon is always dark! See if you can tell the difference between fact and fiction with Is That a Fact?