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'Snowball Comets' Are Just Camera Noise, Berkeley Researchers Say After Analyzing Dark Pixels In Iowa Data

Date:
September 10, 1998
Source:
American Geophysical Union
Summary:
Researchers at the University of California at Berkeley have concluded that "atmospheric holes" in satellite imagery are caused by instrument noise in the spacecraft's own cameras, not by the presence of comets the size of a house bombarding the Earth's atmosphere every few seconds. The existence of such comets, sometimes referred to as snowballs in space, has been hotly debated since it was first proposed by Prof. Louis A. Frank in 1986.

WASHINGTON, D.C.--Researchers at the University of California at Berkeley have concluded that "atmospheric holes" in satellite imagery are caused by instrument noise in the spacecraft's own cameras, not by the presence of comets the size of a house bombarding the Earth's atmosphere every few seconds. The existence of such comets, sometimes referred to as snowballs in space, has been hotly debated since it was first proposed by Prof. Louis A. Frank in 1986.


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The above story is based on materials provided by American Geophysical Union. Note: Materials may be edited for content and length.


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American Geophysical Union. "'Snowball Comets' Are Just Camera Noise, Berkeley Researchers Say After Analyzing Dark Pixels In Iowa Data." ScienceDaily. ScienceDaily, 10 September 1998. <www.sciencedaily.com/releases/1998/09/980910074516.htm>.
American Geophysical Union. (1998, September 10). 'Snowball Comets' Are Just Camera Noise, Berkeley Researchers Say After Analyzing Dark Pixels In Iowa Data. ScienceDaily. Retrieved April 18, 2014 from www.sciencedaily.com/releases/1998/09/980910074516.htm
American Geophysical Union. "'Snowball Comets' Are Just Camera Noise, Berkeley Researchers Say After Analyzing Dark Pixels In Iowa Data." ScienceDaily. www.sciencedaily.com/releases/1998/09/980910074516.htm (accessed April 18, 2014).

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