Abstract
We know that there are on the order of 40,000 so-called NEOs orbiting the Sun. At least these are the best calculations that come from a reasonable sample of the sky based on the observations and thousands of pictures taken by the WISE spacecraft.
From a wild weird clime…sublime, Out of Space—out of Time.
–Edgar Allen Poe (1845)
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© 2013 Joseph N. Pelton
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Pelton, J.N. (2013). Protecting Against Comets and Potentially Hazardous Asteroids. In: Space Debris and Other Threats from Outer Space. SpringerBriefs in Space Development. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6714-4_9
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DOI: https://doi.org/10.1007/978-1-4614-6714-4_9
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