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Loading contentDedicated survey telescopes scan the sky night after night for moving points of light — the near-Earth asteroids and comets. Catalina, Pan-STARRS, and ATLAS lead the search from the ground, and the Rubin Observatory will transform it.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.