Emilio Segrè Visual Archives

More than 30,000 photos of scientists and their work

Penzias Arno C4

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Penzias Arno C4

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Image title: 
Robert W. Wilson and Arno Penzias viewing equipment
Credit line: 
AIP Emilio Segrè Visual Archives, Physics Today Collection

(L-R): Robert W. Wilson and Arno Penzias climb into the mouth of the horn-shaped antenna they used to detect the faint 3K afterglow remaining from the big bang that touched off the universe some 18 billion years ago.

Original format: 
2 photographic prints (black and white; 10.5 x 8.5 inches and 10 x 8 inches)
Penzias, Arno A.
Wilson, Robert Woodrow, 1936-