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Planetary

A guide to interesting stuff going on in space science, space exploration, and space advocacy.

  1. Whose stars? Our heritage of Arabian astronomy

    For UNESCO World Arabic Language Day, Danielle Adams reconstructs the Arabian night sky.

  2. What to Expect When New Horizons Visits 2014 MU69, Ultima Thule

    New Horizons is rapidly approaching its New Year’s encounter with the most distant world ever visited, 2014 MU69. Closest approach will be at a distance of 3,500 kilometers at about 05:33 on 1 January UTC.

  3. Total Immersion in the Heavens

    Casey Dreier assesses the significance of the Apollo program on its 50th anniversary.

  4. Flying By Home

    Vicky Hamilton explores how OSIRIS-REx used its Earth flyby to test instruments on the way to asteroid Bennu.

  5. The Making of Life

    Michael L. Wong asks how our understanding of the origin of life on Earth informs our search for it elsewhere.