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      Knowledge is Power

      Scientific American November 1928

      Asteroid Hunting

      Astronomers Now Conduct the Search for Asteroids or "Pocket Planets" by Modern Mass-Production Methods. Is There an Undiscovered Planet Beyond Neptune?

      • By Henry Norris Russell on November 1, 1928

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      More in the November 1928 issue of Scientific American
      • Hydraulic Drain Pump, Cookery Parchment and more
      • Lightning Stroke Electrocutes Tree, Safeguarding an Oil Tanker and more
      • San Francisco's Memorial Museum
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