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  1. Mysteries of Machu Picchu: Unraveling Ancient Engineering and Celestial Alignments

    Mysteries of Machu Picchu: Unraveling Ancient Engineering and Celestial Alignments

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  3. NASA space observatory poised to launch on a mission to map 450 million galaxies

    NASA space observatory poised to launch on a mission to map 450 million galaxies

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  4. Kepler's Discoveries: Are We Alone? | Discovering Exoplanets and Beyond

    Kepler's Discoveries: Are We Alone? | Discovering Exoplanets and Beyond

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