Interstellar asteroid ‘Oumuamua slipped by NASA space telescope unseen

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    Interstellar asteroid ‘Oumuamua slipped by NASA space telescope unseen
    We are still trying to solve the mystery of 'Oumuamua

    We are still trying to solve the mystery of ‘Oumuamua

    ESO / M. Kornmesser

    By Leah Crane

    Our first view of a rock from beyond our solar system was fleeting. Astronomers spotted the object, later called ‘Oumuamua, in October 2017, and it was quickly too distant for Earth-based telescopes to spot.

    In late November 2017, researchers pointed the Spitzer Space Telescope towards where ‘Oumuamua should have been and stared for more than 30 hours. It saw nothing.

    Immediately, the researchers wondered whether that was because of ‘Oumuamua’s strange acceleration – astronomers using the Hubble Space Telescope had found that it …

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