As NASA looks to step up its detection of potentially dangerous near-Earth objects (NEO), it is working on a dedicated deep-space observatory first proposed more than a dozen years ago. Neocam, a sensor equipped with infrared optics that include a 50-cm (20-in.) aperture and 4-4.5-micron and 6-10-micron wavelength channels, would be launched to the Earth/Sun L1 Lagrange point, a gravitationally stable space coordinate about 1 million mi. from Earth in the direction of the Sun. Once there, ...


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