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Author : United States. Office of Space Science and Applications. Solar System Exploration Division
Publisher : Unknown
Page : 0 pages
File Size : 51,7 Mb
Release : 1992
Category : Cosmology
ISBN : OCLC:1055558709
Author : United States. Office of Space Science and Applications. Solar System Exploration Division
Publisher : Unknown
Page : 148 pages
File Size : 41,9 Mb
Release : 1992
Category : Astrometry
ISBN : UCAL:B4554353
Author : Solar System Exploration Division,National Aeronautics and Space Administration,A. S. a. N. A. S. a.
Publisher : University Press of the Pacific
Page : 144 pages
File Size : 45,7 Mb
Release : 2005
Category : Science
ISBN : 1410224163
In recent decades, several lines of scientific investigation have converged to bring into sharp focus our understanding of the solar system. Intensive observations by spacecraft and other means, combined with extraordinary laboratory analytical methods and theoretical investigations, are beginning to paint an intelligible picture of our solar system's history, the mechanisms of its development, and the relationship between the formation of our Sun and its associated planets. Astronomical observations are providing important new information about the processes that give birth to stars and about the conditions in star-forming regions and around very young stars that might be conducive to establishing planetary systems. This progress leads naturally to a new line of inquiry: the discovery and characterization of planetary systems around other stars. This report describes a general plan and the pertinent technological requirements for TOPS (Toward Other Planetary Systems), a staged program to ascertain the prevalence and character of other planetary systems and to construct a definitive picture of the formation of stars and their planets. The first stages focus on discovering and studying a significant number of fully formed planetary systems, as well as expanding current studies of protoplanetary systems. As the TOPS Program evolves, emphasis will shift toward intensive study of the discovered systems and of individual planets. Early stages of the TOPS Program can be undertaken with ground-based observations and space missions comparable in scale to those now being performed. In the long term, however, TOPS will become an ambitious program that challenges our capabilities and provides impetus for major space initiatives and new technologies, which will be accomplishments of historical significance.
Author : United States. Office of Space Science and Applications. Solar System Exploration Division
Publisher : Unknown
Page : 148 pages
File Size : 48,9 Mb
Release : 1992
Category : Astrometry
ISBN : UIUC:30112105188665
Author : Anonim
Publisher : Unknown
Page : 148 pages
File Size : 49,7 Mb
Release : 1995
Category : Electronic
ISBN : NASA:31769000625296
Author : Bernard F. Burke,Jürgen H. Rahe,Elizabeth E. Roettger
Publisher : Springer Science & Business Media
Page : 475 pages
File Size : 54,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401111546
`Are there other planetary systems like ours? Other planets like ours? Is there life elsewhere in the Universe?' So asks Dr. Lew Allen Jr. in the Foreword. In December of 1992, theorists, observers, and instrument builders gathered at the California Institute of Technology to discuss the search for answers to these questions. The International Conference, entitled `Planetary Systems: Formation, Evolution, and Detection' and supported through NASA's newly formed TOPS (Toward Other Planetary Systems) program, was the first of a series of conferences uniting researchers across disciplines and political boundaries to share thoughts and information on planetary systems. The conference was sponsored by NASA, hosted by JPL at Caltech, and endorsed by the 1992 International Space Year Association. These proceedings include discussions of topics ranging from stellar, disk, and planetary formation to new ways of searching for other stellar systems containing planets. The authors represent a wide range of nationalities, disciplines, and points of view. The second international conference took place in December of 1993.
Author : C. A. Beichman
Publisher : Unknown
Page : 126 pages
File Size : 50,7 Mb
Release : 1996
Category : Outer space
ISBN : NASA:31769000705932
NASA presents information about the astronomy project to map the exploration of nearby planets and orbiting stars. The project consists of a consortium of many institutions to create a space-based optical interferometer, the study of dust clouds around stars, and more. Information about support ground-based programs, supporting space missions, and other details about the project are available.
Author : Anonim
Publisher : Unknown
Page : 602 pages
File Size : 42,5 Mb
Release : 1995
Category : Aeronautics
ISBN : MINN:30000006324614
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : Barry R. PARKER
Publisher : Springer
Page : 354 pages
File Size : 42,9 Mb
Release : 2013-11-11
Category : Science
ISBN : 9781489960528
Each dome is the brainchild of extraordinary scientists - pioneers who, amidst fierce competition and frigid, treacherous conditions - fought for their dreams to build the largest, most magnificent telescopes on Earth.
Author : Anonim
Publisher : Unknown
Page : 260 pages
File Size : 41,5 Mb
Release : 1992
Category : Aeronautics
ISBN : STANFORD:36105024739224
Author : Steven J. Dick
Publisher : Cambridge University Press
Page : 306 pages
File Size : 51,9 Mb
Release : 2001-03-19
Category : Body, Mind & Spirit
ISBN : 0521799120
Are we alone in the universe? From canals on Mars to the search for ET, the debate goes on. Lucid and accessible, this otherworldly guide chronicles the history of the 20th century obsession with extraterrestrials.
Author : John S. Lewis
Publisher : Academic Press
Page : 614 pages
File Size : 51,7 Mb
Release : 1997
Category : Science
ISBN : 0124467423
This book is aimed at several distinct audiences: first, the upper division science major who wants an up-to-date appreciation of the present state of the planetary sciences for 'cultural' purposes; second, the first-year graduate student from any of several undergraduate disciplines who intends to take graduate courses in specialized areas of planetary sciences; and third, the practicing Ph. D. scientist with training in physics, chemistry, geology, astronomy, meteorology, biology, etc., who has a highly specialized knowledge of some portion of this material, but has not had the opportunity to study the broad context within which that specialty might be applied to current problems in this field.
Author : Willem Wamsteker,Malcolm S. Longair,Y. Kondo
Publisher : Springer Science & Business Media
Page : 721 pages
File Size : 50,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401107945
ROSAT Observations G. HASINGER Max-Planck-Institut flir extraterrestrische Physik, D-85740 Garching, Germany Abstract. This review describes the most recent advances in the study of the extragalactic soft X-ray background and what we can learn about its constituents. The deepest pointed observations with the ROSAT PSPC are discussed. The logN-logS relation is presented, which reaches to the faintest X-ray fluxes and to the highest AGN surface densities ever achieved. The N(>S) relation shows a 2 density in excess of 400 deg- at the faintest fluxes and a flattening below the Einstein Deep Survey limit. About 60% of the extragalactic background has been resolved in the deepest field. Detailed source spectra and first optical and radio identifications will be discussed. The results are put into perspective of the higher energy X -ray background. Key words: X-rays, background radiations, active galactic nuclei. 1. Introduction The extragalactic X-ray background (XRB), discovered about 30 years ago, has been studied extensively with many X-ray experiments, in particular with the satel lites HEAO I and II (see ego Boldt 1987) and with ROSAT (e. g. Hasinger et aI. , 1993). Figure 1 shows a compilation of some of the most recent spectral measure ments for the X-ray background. Over the energy range from 3 to about 100 keY its spectrum can be well approximated by an optically thin thermal bremsstrahlung model with kT ~ 40 keY, while at lower X-ray energies a steepening into a new component has been observed observed (e. g.
Author : Anonim
Publisher : Unknown
Page : 1194 pages
File Size : 54,9 Mb
Release : 1993
Category : Government publications
ISBN : UIUC:30112063914847
Author : Russell Gerald Johnston
Publisher : iUniverse
Page : 624 pages
File Size : 51,7 Mb
Release : 2012-06-14
Category : Self-Help
ISBN : 1475917708
Random Wisdom is a collection of thoughts and insights from some of the greatest minds of modern and ancient times, painstakingly collected and compiled by one man in his unquenchable thirst for knowledge. This collection of literary tidbits will educate, inspire, and entertain the reader with its wide range of subjects, wit, and timeless anecdotes. As the title suggests, the information presented is randomly organized and is meant to serve as an inspirational reference book. The thousands of entries are designed to inspire deeper thinking and inward reflection, with many offering a healthy dose of wit and humor as well.