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    All These Worlds

    Nov. 29, 2018: The latest mission to explore Mars—the only planet we know of populated entirely by robots—is safe on the ground and gearing up for two years of groundbreaking science.

    InSight on Mars
    InSight lander on Mars. Credit: NASA/JPL-Caltech

    NASA's Nov. 26 InSight landing on the Red Planet was supported by the twin MarCO spacecraft, the first interplanetary CubeSats.

    More science robots are actively exploring these worlds: Venus, Earth, Earth's Moon, Mars, asteroid Bennu and Jupiter. Several spacecraft are watching the Sun.

    NASA's New Horizons is closing in on a Jan. 1, 2019 rendezvous with a small body in the Kuiper Belt about a billion miles beyond Pluto. Meanwhile, ESA's BepiColombo is working its way toward Mercury in the inner solar system.

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