This volume, together with Volumes 22 and 23 of the same series, contains Euler's contributions to the theory of the movement of the sun and especially of the moon. Time and again Euler worked on the program of applying Newton's principles of mechanics to improve our unterstanding of the movement of the celestial bodies. Euler's monumental "Theoria motuum Lunae nova methodo pertractata" of 1772 (his "Second Theory of the Moon") forms Volume 22, whereas Volume 23 mainly contains his early Astronomical Tables and his "First Theory of the Moon" of 1753. In the present volume the reader will find early papers by Euler pertaining to the preparation of his Astronomical Tables, a series of articles written between his two Theories of the Moon, and finally three substantial essays closely related to his "Second Theory of the Moon." The texts are reprinted in the original language most commonly French or Latin.

This book develops the statistical mechanics of the formation of gravitating cosmogonical bodies in the investigation of our solar system and other exoplanetary systems. The first part of the text acquaints the reader with the developing statistical theory of gravitating cosmogonical body formation. Within the framework of this theory, the models and evolution equations of the statistical mechanics are proposed, while well-known problems of gravitational condensation of infinite distributed cosmic substances are solved on the basis of the proposed statistical model of spheroidal bodies. The second section of the book details theoretical and practical approaches to investigating the solar system and other exoplanetary systems. In particular, it considers a new universal stellar law (USL) for extrasolar planetary systems connecting the temperature, the size and the mass of each star. Within the framework of the developed statistical theory, a new law (generalizing the famous law of O. Schmidt) for the distribution of planetary in the solar system is also provided.

Planet Earth is part of our Galactic environment, not just the product of it, and it is still today influenced by phenomena related to Galactic forces. Specifically, our planet is affected by its near environment, in particular the small bodies in the Solar System. This book reviews the processes which cause the collisions of these small bodies with the Earth as well as the consequences of such collisions. The various articles take the reader through the Galaxy-Solar System connection to the orbital dynamics of the small bodies and to their number and distribution in near-Earth space. The hazards of the impacts of small bodies on Earth are evaluated, and the geophysical records of such impacts are discussed. The book takes the reader to the forefront of research on both impact cratering and the origin and evolution of small bodies in the Solar System. Thus it brings together two subjects, geophysics and astronomy, which are usually discussed in separate volumes but are closely knit together in this particular area of research.

The volume begins with contributions on solar modelling, starting with the Standard Model. The experimental results on solar neutrinos precedes recent theoretical ideas on neutrino masses. Helioseismology is presented from both a theoretical and an experimental point of view, describing recent resul

The Juno mission to Jupiter is one of the most ambitious, daring and challenging solar system exploration missions ever conceived. Next to the Sun, Jupiter is the largest object in our solar system. As such, it is both a record and driver of the formation and evolution of the planets -- no other object in our solar system can tell us more about the origin of planetary systems. Understanding the details of giant planet formation, structure, composition and powerful magnetospheric environment required a new perspective close up and over the poles of Jupiter -- an orbit never before attempted. Juno was specifically designed for this challenge, entering into the harshest planetary environment known in the solar system. This volume describes the mission design, scientific strategies and instrument payload that enable Juno to peer deep into Jupiter's atmosphere and reveal the fundamental process of the formation and early evolution of our solar system. In these papers, the Juno instrument teams describe their investigations, which include gravity radio science, microwave radiometers, magnetometers, an infrared imager auroral mapper, an ultraviolet imager and spectrograph, a visible light imager known as JunoCam, low and high energy particle detectors and plasma wave and radio electromagnetic sensors. The articles also describe a radiation monitoring experiment and the extensive laboratory measurements undertaken to assist with the analysis and interpretation of Juno's pioneering investigation of Jupiter's deep atmosphere. Originally published in Space Science Reviews, Volume 213, Issue 1-4, November 2017

The interdisciplinary field of Astrobiology constitutes a joint arena where provocative discoveries are coalescing concerning, e.g. the prevalence of exoplanets, the diversity and hardiness of life, and its increasingly likely chances for its emergence. Biologists, astrophysicists, biochemists, geoscientists and space scientists share this exciting mission of revealing the origin and commonality of life in the Universe. The members of the different disciplines are used to their own terminology and technical language. In the interdisciplinary environment many terms either have redundant meanings or are completely unfamiliar to members of other disciplines. The Encyclopedia of Astrobiology serves as the key to a common understanding. Each new or experienced researcher and graduate student in adjacent fields of astrobiology will appreciate this reference work in the quest to understand the big picture. The carefully selected group of active researchers contributing to this work and the expert field editors intend for their contributions, from an internationally comprehensive perspective, to accelerate the interdisciplinary advance of astrobiology. This new edition offers ~300 new entries. Many entries were expanded or supplemented by figures supporting the understanding of the text. Especially in the field of astrochemistry there is a huge body of new results that have been taken into account in this new edition. The synonyms and keywords have been carefully revisited. Many were added, redundant ones deleted.

Drawing together leading observational astronomers, atmospheric researchers and public policy analysts, including Edward Teller, David Morrison, and Eugene Shoemaker, the discussions in this volume provide a detailed look at the probability and implications of an impact of an asteroid or comet with the Earth. The chapters are based on discussions held at the Erice International Seminar on Planetary Emergencies in 1993, which reached the following conclusions: cosmic impacts have already played a significant role in the evolution of the Earth itself and of life on the Earth; while the threat of such a large impact is minuscule in any one year, the consequences are so grave that one should continue to study the threat; a small impact is considerably more probable and carries the additional threat of being mistaken for a nuclear explosion at a time of international tension, with dire consequences; and that it is necessary to gather data on objects near the Earth, or in orbits that may bring them near Earth and to publish these data openly and internationally.