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Ice comet theory faces tough questions at news briefing
Francisco AP reports Louis Frank of the University of Iowa defended his claim that icy comets daily add water and organic material to Earth. At an American Geophysical Union meeting, Frank cited 1997 photos from NASA’s Polar spacecraft showing atmospheric water vapor holes, contrasting critics who call the data noise. NASA and other agencies plan further optical and radar checks to verify findings.
MENTIONED IN THIS ARTICLE
Louis Frank
University of Iowa
Frank
Earth
Francisco
American Geophysical Union
NASA
Polar
Robert Hoffman
Goddard Space Flight Center
Air Force
Navy
Hoffman