Asteroid - A small rocky body orbiting the Sun., Near-Earth-object - Any small body whose orbit brings it close to Earth., Orbit - The curved path of a celestial object or spacecraft around a star, planet, or moon, Telescope - An instrument for viewing distant objects, Nuclear weapon - A weapon of mass destruction powered by nuclear reactions, Mitigation - The action of reducing the severity or seriousness of something, To track - To follow the movement or progress of something., To log - To record or make a note of something., Hazardous - Dangerous or risky,

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