A Road Map for the Exploration of Neighboring Planetary Systems
A Road Map for the Exploration of Neighboring Planetary Systems

Author: C. A. Beichman

Publisher:

Published: 1996

Total Pages: 126

ISBN-13:

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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.

Scientific and Technical Aerospace Reports
Scientific and Technical Aerospace Reports

Author:

Publisher:

Published: 1995

Total Pages: 602

ISBN-13:

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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.

Planetary Systems: Formation, Evolution, and Detection
Planetary Systems: Formation, Evolution, and Detection

Author: Bernard F. Burke

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 475

ISBN-13: 9401111545

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`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.

The Human Exploration of Space
The Human Exploration of Space

Author: National Research Council

Publisher: National Academies Press

Published: 1998-01-30

Total Pages: 174

ISBN-13: 0309060346

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During 1988, the National Research Council's Space Science Board reorganized itself to more effectively address NASA's advisory needs. The Board's scope was broadened: it was renamed the Space Studies Board and, among other new initiatives, the Committee on Human Exploration was created. The new committee was intended to focus on the scientific aspects of human exploration programs, rather than engineering issues. Their research led to three reports: Scientific Prerequisites for the Human Exploration of Space published in 1993, Scientific Opportunities in the Human Exploration of Space published in 1994, and Science Management in the Human Exploration of Space published in 1997. These three reports are collected and reprinted in this volume in their entirety as originally published.

Space and the American Imagination
Space and the American Imagination

Author: Howard E. McCurdy

Publisher: JHU Press

Published: 2011-03

Total Pages: 408

ISBN-13: 0801898684

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People dreamed of cosmic exploration—winged spaceships and lunar voyages; space stations and robot astronauts—long before it actually happened. Space and the American Imagination traces the emergence of space travel in the popular mind, its expression in science fiction, and its influence on national space programs. Space exploration dramatically illustrates the power of imagination. Howard E. McCurdy shows how that power inspired people to attempt what they once deemed impossible. In a mere half-century since the launch of the first Earth-orbiting satellite in 1957, humans achieved much of what they had once only read about in the fiction of Jules Verne and H. G. Wells and the nonfiction of Willy Ley. Reaching these goals, however, required broad-based support, and McCurdy examines how advocates employed familiar metaphors to excite interest (promising, for example, that space exploration would recreate the American frontier experience) and prepare the public for daring missions into space. When unexpected realities and harsh obstacles threatened their progress, the space community intensified efforts to make their wildest dreams come true. This lively and important work remains relevant given contemporary questions about future plans at NASA. Fully revised and updated since its original publication in 1997, Space and the American Imagination includes a reworked introduction and conclusion and new chapters on robotics and space commerce.

Frontiers Of Space And Ground-Based Astronomy
Frontiers Of Space And Ground-Based Astronomy

Author: Willem Wamsteker

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 721

ISBN-13: 9401107947

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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.