"The whole aim of practical politics is to keep the populace alarmed (and hence clamorous to be led to safety) by menacing it with an endless series of hobgoblins, all of them imaginary." ~ H.L. Mencken
Small Comets and Our Origins: The Ecstacy and Agony of the Scientific Debate
Small Comets and Our Origins: The Ecstacy and Agony of the Scientific Debate A Presidential Lecture given by University of Iowa Carver/James A. Van Allen
Professor of Physics
Louis A. Frank
It is a shocking notion. Radiation-blasted, black- jacketed snowballs the size of houses swarming out of the cosmic void every day, plowing into Earth's atmosphere and pancaking explosively into clouds of vapor that fall as gentle rains.
Over billions of years these invaders might have filled Earth's oceans and provided the seeds of life.
-Kathy Sawyer Astronomy(October 1998)
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