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    • A few words on gravity...

      Richmond Times-Dispatch· 3 days ago

      (The Keeble Observatory at Randolph-Macon College will close public viewing for the summer.)

    • How Are Stars Formed, and How Do They Hold Together?

      ExtremeTech· 4 days ago

      How does that work, and how do stars form in the first place? What holds atom away from atom is the mutual repulsion between electrons, a force sometimes called the Coulomb barrier, so strong ...