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The exoplanet revolution that began three decades ago has drastically changed our knowledge of the extra-solar systems. Today, we face an extreme diversity and complexity of these systems that can only be understood through the intimate link that exists between the planets and their host stars. The understanding, characterization, and the detection of the exoplanets has to be made in close collaboration between stellar and planetary physicists. The purpose of the school and this book is to provide an update of our current knowledge in some selected research fields dedicated to the interplay between stars and planets. It aims to prepare scientists for a rich new decade for exoplanets with space missions like the upcoming PLATO and ARIEL and the new instruments on the VLT and the future ELT.
Extrasolar planets. --- Planets. --- Stars.
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The two most fascinating questions about extraterrestrial life are where it is found and what it is like. In particular, from our Earth-based vantage point, we are keen to know where the closest life to us is, and how similar it might be to life on our home planet. This book deals with both of these key issues. It considers possible homes for life, with a focus on Earth-like exoplanets. And it examines the possibility that life elsewhere might be similar to life here, due to the existence of parallel environments, which may result in Darwinian selection producing parallel trees of life between one planet and another. Understanding Life in the Universe provides an engaging and myth-busting overview for any reader interested in the existence and nature of extraterrestrial life, and the realistic possibility of discovering credible evidence for it in the near future.
Life on other planets. --- Extraterrestrial life --- Planets --- Fermi's paradox
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Earth sciences --- Planets --- Remote sensing. --- Remote sensing
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This book is concerned with two tightly knit topics - those of mathematics and astronomy. Its focus is primarily concerned with planetary astronomy, and specifically the history of accounting for the spacing of planetary orbits. The story begins with the ancient Greek philosophers and continues to the modern era and the new data being gleaned from the study of exoplanetary systems. Throughout the text, the manner in which mathematical theory has been used to decipher, and impose order upon the solar system, will be examined. Attention and discussion will be directed towards the so-called Titius-Bode rule, a long-standing ordering principle, that in fact it has no physical underpinning or explanation.The story presented will look at how humanity has learned about the workings of the solar system, and it will look at the philosophical problems that arise when mathematical exposition leads observation. Furthermore, the fundamental role of mathematics in the development of physical theory is examined, and it is argued that there are some gaps in our knowledge of the solar system (and the universe) that mathematics and physical theory will never successfully bridge. The text will present material at the informed-amateur scientist, university undergraduate student level.
Planets --- Planetary theory. --- Théorie planétaire. --- Planètes --- Orbits. --- Orbites.
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"A guided journey to the inner workings of Earth - and the cloaked mysteries of other planets in our solar system and beyond. We live on the surface of Earth, but rarely consider the fascinating world beneath our feet. The daily machinations of Earth's deep interior have crucial impacts on our lives and make the planet a habitable, and yet treacherous, place to live. In What's Hidden Inside Planets? planetary scientist Dr. Sabine Stanley takes us beneath the surface to delve into the very heart of a planet to discover what lies within. Considering the planets in our own solar system and beyond, Stanley connects the wonders we see at a planet's surface to the intricate workings of its interior. Earthquakes (and marsquakes, and venusquakes), volcanoes (both the fiery and the icy varieties), and the geomagnetic field that both protects us from fierce solar winds and makes the aurora borealis's beauty possible are all the result of these interior processes. Stanley explores the extreme environments found inside planets, which can be hotter than the surface of the Sun, pummeled by diamond rain, full of metallic hydrogen, and straining under the pressure of millions of atmospheres. Information about planetary births and their interiors comes from a range of sources. Samples of the building blocks of planets retrieved from meteorites provide clues for how Earth and other planets formed and what they're composed of. Scientists combine that information with studies of seismic waves, rotation, and the gravitational and magnetic fields of planets, as well as extreme experiments and computational models, to simulate the deep interiors of planets and learn how they work. Stanley's planetary "cookbook" describes the ingredients from which planets are created, the processes that bring them together, and what happens when the crumbs decay. Join this exciting journey to the center of the Earth and many other interstellar locations to learn what lies beneath our feet and why it's the best real estate in our solar system."
Planets --- Planètes --- Terre --- Internal structure. --- Structure interne. --- Earth (Planet)
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"The first detection in 1995 of a planet orbiting a sun-like star outside our solar system marked the dawn of a new age of discovery-one that has rapidly transformed astronomy and our broader understanding of our place in the universe. Nearly five thousand exoplanets have been identified since then, with the pace of discovery only accelerating following the launch of missions like NASA's Transiting Exoplanet Satellite Survey and others to come. We now know that most sun-like stars host their own systems of planets analogous to our solar system, and a few of these planets may potentially be like Earth. But arguably the most remarkable discoveries so far have been of planets with unexpected, decidedly un-Earth-like properties, which have upended what we thought we knew about the origins of planets and planetary systems. The Little Book of Exoplanets provides a concise, cutting-edge introduction to this field for general readers, written by leading Princeton exoplanet scientist Josh Winn. It offers an accessible view into the sophisticated detective work astronomers perform to detect and characterize exoplanets, and describes the surprising, sometimes downright bizarre planets and systems we have found. Winn explains how these discoveries are revolutionizing astronomy, and explores the current status and future of our search for another Earth. He concludes with a reflection on how our discovery of exoplanets changes our perspective on the universe"--
Extrasolar planets. --- SCIENCE / Physics / Astrophysics --- SCIENCE / Space Science / General --- Exo-planets --- Exoplanets --- Extra-solar planets --- Planets --- Stars with planets --- Kepler mission. --- Solar System. --- TESS mission. --- alien worlds. --- astronomy. --- astrophysics. --- exoplanets. --- extraterrestrial. --- physics. --- planet detection. --- planet formation. --- planetary science. --- planetary systems. --- planets. --- telescope.
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Interplanetary voyages --- Planets --- Exploration --- Space travel --- Voyages, Interplanetary --- Astronautics --- Rockets (Aeronautics) --- Space flight --- Interplanetary voyages. --- Exploration.
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Qui de mieux que Nathalie A. Cabrol pour faire le point dans un essai vivant et didactique sur l'une des questions les plus profondes de l'humanité : sommes-nous seuls dans l'Univers ? La directrice scientifique du centre SETI (Search for Extraterrestrial Intelligence, « Recherche d'intelligence extraterrestre ») aborde tour à tour l'exploration de notre système solaire, la recherche des exoplanètes, celle des signaux extraterrestres et les types de civilisations ou vies qu'on espère y trouver. L'astrobiologiste nous invite à participer à cette odyssée extraordinaire que nous vivons actuellement, et dont les images du télescope James-Webb ne sont qu'un infime reflet. Avec 300 millions d'exoplanètes dans la zone habitable de notre galaxie, penser que nous sommes seuls est une « absurdité statistique ». Dès lors nous sommes pris d'un vertige devant l'ampleur de certaines révélations. De Titan à la planète 55-Cancer-e, de l'équation de Drake au paradoxe de Fermi, des typologies de niveaux de civilisations extraterrestres à la théorie de Gaïa, c'est tout un monde inconnu qui s'ouvre à nous. Un livre stimulant et accessible dans la lignée de Poussières d'étoiles de Hubert Reeves. Une invitation au voyage d'un nouveau genre, à la recherche d'une vie ailleurs dans l'Univers dont « l'absence de preuves n'est pas la preuve de l'absence », selon les mots de Carl Sagan.
Life --- Life on other planets. --- Cosmology. --- Origine de la vie --- Vie extraterrestre. --- Cosmologie. --- Origin.
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Recent advances in the sciences, and their application to space, have enabled scientists to make accurate and informed predictions about the possibility of life on other planets. This study presents the scientific search for life in the universe.
Life on other planets. --- Life --- Abiogenesis --- Biogenesis --- Germ theory --- Heterogenesis --- Life, Origin of --- Life (Biology) --- Origin of life --- Plasmogeny --- Plasmogony --- Evolution (Biology) --- Exobiology --- Spontaneous generation --- Extraterrestrial life --- Planets --- Fermi's paradox --- Origin. --- Origin
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