2026 Reading Challenge

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Are you Arthur R. Upgren, author of the books below?
Many Skies by Arthur R. Upgren Weather by Arthur R. Upgren Night Has a Thousand Eyes by Arthur R. Upgren The Turtle and the Stars by Arthur R. Upgren Space Travel and Exploration by Rebecca Clay The Sun and the Solar System by Franklyn Mansfield Branley New Developments in Array Technology and Applications by A.G. Davis Philip Hot Stars in the Galactic Halo by Saul J. Adelman Mapping the Sky by S. Débarbat Hot Stars in the Galactic Halo by Saul J. Adelman


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