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Scientist defends icy comets theory in new data
San Francisco based planetary physicist Louis Frank of the University of Iowa argues icy comets rain water into Earth's upper atmosphere daily, forming atmospheric holes that release water vapor. He cites NASA Polar camera images showing an altitude dependent drop in hole frequency and dismisses rival studies as noise or flawed.
MENTIONED IN THIS ARTICLE
San Francisco
Louis Frank
University of Iowa
Frank
Earth
American — Geophysical Union
NASA
Polar
George Parks
University of Washington
University of Arizona