Sagan

:For the Polish town, see ?aga?.

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A Sagan is a humorous unit of measurement equal to at least 4,000,000,000.

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The unit is derived from the phrase billions and billions (of stars), attributed to the American astronomer Carl Sagan. The minimum lower bound of a number conforming to the constraint of billions and billions must be 2,000,000,000 plus 2,000,000,000 or 4,000,000,000, assuming, of course, that Sagan was using the American English definition for billion.

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Note that though many believe Sagan was famous for using the phrase billions and billions, he claims he never actually did, having used instead the simpler phrase billions of stars.... It was actually Johnny Carson, impersonating Sagan, who popularized the phrase attributed to Sagan.

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American: :This page disambiguates the many uses of American. For an article about those various uses, please see Use of the word American....

Astronomer: An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics....

Carl Sagan: Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer and science popularizer. He pioneered exobiology and promoted the Search for ExtraTerrestrial Intelligence (SETI). He is world-famous for his popular science books and the television series ', which he co-wrote...

Sagan related Images and Photos (experimental)

Sagan - German Style

Françoise Sagan

French Authoress Francoise Sagan Laying in Bed Listening to Music