Defending Planet Earth : Near-Earth Object Surveys and Hazard Mitigation Strategies / Committee to Review Near-Earth-Object Surveys and Hazard Mitigation Strategies ; Space Studies Board ; Aeronautics and Space Engineering Board, Division on Engineering and Physical Sciences, National Research Council of the National Academies.

"The United States spends approximately $4 million each year searching for near-Earth objects (NEOs). The objective is to detect those that may collide with Earth. The majority of this funding supports the operation of several observatories that scan the sky searching for NEOs. This, however, i...

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Συλλογικό Έργο:	National Research Council (U.S.). Committee to Review Near-Earth-Object Surveys and Hazard Mitigation Strategies, National Research Council (U.S.). Space Studies Board, National Research Council (U.S.). Aeronautics and Space Engineering Board
Μορφή:	Ηλ. βιβλίο
Γλώσσα:	English
Έκδοση:	Washington, D.C. : National Academies Press, ©2010.
Θέματα:	Near-Earth objects. Asteroids > Collisions with Earth. Comets > Collisions with Earth. SCIENCE > Astronomy. Asteroids > Collisions with Earth Comets > Collisions with Earth Near-Earth objects
Διαθέσιμο Online:	Click for online access