Encyclopedia of Space and Astronomy (Facts on File Science Library)
Language: English
Pages: 740
ISBN: 0816053308
Format: PDF / Kindle (mobi) / ePub
Encyclopedia of Space and Astronomy covers this timely and popular topic in a clear, comprehensive manner. Offering a complete presentation of the main concepts, terms, facilities, and people in astronomy, the encyclopedia pays special attention to space-based astronomy and space exploration. Broad coverage includes terms such as astrophysics, planetary science, and cosmology, as well as both American and international astronomy and space technology. Containing 600-700 entries, 10-15 essays, 75-100 line illustrations, and 75-100 black-and-white photographs, this authoritative reference provides students and teachers with a visually stimulating learning experience.Encyclopedia of Space and Astronomy focuses mainly on modern astronomy and space achievements but also includes the most important accomplishments of classical astronomy.
Thirteen: The Apollo Flight That Failed
Dust in the Solar System and Other Planetary Systems (Cospar)
From Runway to Orbit: Reflections of a NASA Engineer
Adventures into Space: The laugh out loud space comedy
resettled in the United States to continue their rocketry work. At the end of the war American troops also captured hundreds of intact V-2 rockets. Soon after Germany’s defeat von Braun and his colleagues arrived at Fort Bliss, Texas. He helped the U.S. Army (under Project Hermes) reassemble and launch captured German V-2 rockets from the White Sands Proving Grounds in southern New Mexico. During this period von Braun also married Maria von Quistorp on March 1, 1947. Relocated German engineers
named Andreas Osiander. The minister, mindful that Martin Luther himself firmly opposed the new Copernican theory, added an unauthorized preface to weaken the impact of its contents. In effect, Osiander’s unauthorized preface stated that Copernican theory was not being advocated as a description of the physical universe but only as a convenient way to efficiently calculate the tables of planetary motions. The book (so modified) finally appeared in 1543. Historic legend suggests that Copernicus
HUBBLE CONSTANT; POSITRON; QUANTUM MECHANICS. Dirac cosmology An application of the “large numbers hypothesis” within modern cosmology that tries to relate the fundamental physical constants found in subatomic physics to the age of the universe and other large-scale cosmic characteristics. Suggested by the Nobel laureate PAUL DIRAC, it is now not generally accepted but does influence the ANTHROPIC PRINCIPLE. See also COSMOLOGY. direct broadcast satellite (DBS) A class of communications satellite
safely on July 21 after six mission days, and the Apollo 18 flight successfully concluded on July 24, 1975, nine days after launch. The primary objectives of this first international human-crewed mission were met, including rendezvous, docking, crew transfer, and control center–crew interaction. See also APOLLO PROJECT; SOYUZ SPACECRAFT. Apollo Telescope Mount (ATM) The sophisticated telescope mount on NASA’s Skylab space station. From May 1973 until February 1974 this device supported solar
space, although less than 200 have been detected so far. Between 25 percent and 50 percent of these objects will eventually impact Earth, but the average time interval between such impacts is quite long—typically more than 100,000 years. The largest currently known Earth-crossing asteroid is 1,866 Sisyphus. It has a diameter of approximately 8 km, making it only slightly smaller than the 10-km-diameter impactor believed to have hit Earth about 65 million years ago. That event, sometimes called
