New and completely revised edition with 320 illustrations, 8 pages in full color, maps and diagrams by SIR HAROLD SPENCER JONES Former Astronomer Royal, and others An indispensable handbook which combines a survey of all branches of astronomy with details of satellites, missiles and upper atmosphere research. With more than 700 factual, readable entries, the book covers everything from artificial satellites to galaxies and cosmology; from radio astronomy to space medicine. "The usefulness of this book cannot be over-emphasized at this time/'-LIBRARY JOURNAL $8.95 at all booksellers, or write
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