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    • Why does Earth have only one Moon? | Astronomy.com

      Astronomy Magazine· 47 minutes ago

      Why do some planets have moons and some don’t? On Earth, you can look up at night and see the Moon shining bright from hundreds of thousands of miles away. First, a moon is called a natural ...

    • Scientists witness a black hole awaken

      Scientists witness a black hole awaken

      Salon.com· 3 days ago

      Most galaxies have a supermassive black hole in their center. Specifically, it began to brighten, remaining illuminated for years even though galaxies...