NASA CORE: CENTRAL OPERATION OF RESOURCES FOR EDUCATORS-EDUCATIONAL MATERIALS CATALOG... NASA/TM-1998-207845 ... AUG. 10, 1998 PDF Download
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722654795
Category :
Languages : en
Pages : 88
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Book Description
Contains a summary of the breakdown of questions/requests received during the grant period. Contains a summer and a detailed list of all items distributed during the grant period. Salyer, Tina L. Glenn Research Center...
Author: United States. National Aeronautics and Space Administration
Publisher:
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Category :
Languages : en
Pages :
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Author: Sons of the American Revolution
Publisher:
ISBN:
Category :
Languages : en
Pages : 822
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Author: William K. Hartmann
Publisher:
ISBN:
Category : Mars (Planet)
Languages : en
Pages : 200
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Book Description
Author: Oliver Morton
Publisher: Picador
ISBN: 0312707932
Category : Science
Languages : en
Pages : 388
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Book Description
Who are the extraordinary individuals that will take us on the next great space race, the next great human endeavor, our exploration and colonization of the planet Mars? And more importantly, how are they doing it? Acclaimed science writer Oliver Morton explores the peculiar and fascinating world of the new generation of explorers: geologists, scientists, astrophysicists and dreamers. Morton shows us the complex and beguiling role that mapping will play in our understanding of the red planet, and more deeply, what it means for humans to envision such heroic landscapes. Charting a path from the 19th century visionaries to the spy-satellite pioneers to the science fiction writers and the arctic explorers -- till now, to the people are taking us there -- Morton unveils the central place that Mars has occupied in the human imagination, and what it will mean to realize these dreams. A pioneering work of journalism and drama, Mapping Mars gives us our first exciting glimpses of the world to come and the curious, bizarre, and amazing people who will take us there.
Author: Aaron Clement Waters
Publisher:
ISBN:
Category : Caves
Languages : en
Pages : 178
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Author: Alfred Russel Wallace
Publisher: Library of Alexandria
ISBN: 1465560149
Category : Fiction
Languages : en
Pages : 103
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Book Description
Few persons except astronomers fully realise that of all the planets of the Solar system the only one whose solid surface has been seen with certainty is Mars; and, very fortunately, that is also the only one which is sufficiently near to us for the physical features of the surface to be determined with any accuracy, even if we could see it in the other planets. Of Venus we probably see only the upper surface of its cloudy atmosphere. As regards Jupiter and Saturn this is still more certain, since their low density will only permit of a comparatively small proportion of their huge bulk being solid. Their belts are but the cloud-strata of their upper atmosphere, perhaps thousands of miles above their solid surfaces, and a somewhat similar condition seems to prevail in the far more remote planets Uranus and Neptune. It has thus happened, that, although as telescopic objects of interest and beauty, the marvellous rings of Saturn, the belts and ever-changing aspects of the satellites of Jupiter, and the moon-like phases of Venus, together with its extreme brilliancy, still remain unsurpassed, yet the greater amount of details of these features when examined with the powerful instruments of the nineteenth century have neither added much to our knowledge of the planets themselves or led to any sensational theories calculated to attract the popular imagination. But in the case of Mars the progress of discovery has had a very different result. The most obvious peculiarity of this planet—its polar snow-caps—were seen about 250 years ago, but they were first proved to increase and decrease alternately, in the summer and winter of each hemisphere, by Sir William Herschell in the latter part of the eighteenth century. This fact gave the impulse to that idea of similarity in the conditions of Mars and the earth, which the recognition of many large dusky patches and streaks as water, and the more ruddy and brighter portions as land, further increased. Added to this, a day only about half an hour longer than our own, and a succession of seasons of the same character as ours but of nearly double the length owing to its much longer year, seemed to leave little wanting to render this planet a true earth on a smaller scale. It was therefore very natural to suppose that it must be inhabited, and that we should some day obtain evidence of the fact.
