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''Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium'' is a 1997 book by the American astronomer and science popularizer
Carl Sagan Carl Edward Sagan (; ; November 9, 1934December 20, 1996) was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, and science communicator. His best known scientific contribution is research on ext ...
. The last book written by Sagan before his death in 1996, it was published by
Random House Random House is an American book publisher and the largest general-interest paperback publisher in the world. The company has several independently managed subsidiaries around the world. It is part of Penguin Random House, which is owned by Germ ...
.


Overview

The book is a collection of essays Sagan wrote covering diverse topics such as
global warming In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
, the
population explosion Overpopulation or overabundance is a phenomenon in which a species' population becomes larger than the carrying capacity of its environment. This may be caused by increased birth rates, lowered mortality rates, reduced predation or large scale m ...
,
extraterrestrial life Extraterrestrial life, colloquially referred to as alien life, is life that may occur outside Earth and which did not originate on Earth. No extraterrestrial life has yet been conclusively detected, although efforts are underway. Such life might ...
,
morality Morality () is the differentiation of intentions, decisions and actions between those that are distinguished as proper (right) and those that are improper (wrong). Morality can be a body of standards or principles derived from a code of cond ...
, and the
abortion debate The abortion debate is a longstanding, ongoing controversy that touches on the moral, legal, medical, and religious aspects of induced abortion. In English-speaking countries, the debate most visibly polarizes around adherents of the self-describ ...
. The last chapter is an account of his struggle with
myelodysplasia A myelodysplastic syndrome (MDS) is one of a group of cancers in which immature blood cells in the bone marrow do not mature, and as a result, do not develop into healthy blood cells. Early on, no symptoms typically are seen. Later, symptoms may ...
, the disease which finally took his life in December 1996. Sagan's wife,
Ann Druyan Ann Druyan ( ; born June 13, 1949) is an Emmy and Peabody Award-winning American documentary producer and director specializing in the communication of science. She co-wrote the 1980 PBS documentary series ''Cosmos'', hosted by Carl Sagan, ...
, wrote the epilogue of the book after his death.


"Billions and billions"

To help viewers of ''
Cosmos The cosmos (, ) is another name for the Universe. Using the word ''cosmos'' implies viewing the universe as a complex and orderly system or entity. The cosmos, and understandings of the reasons for its existence and significance, are studied in ...
'' distinguish between "millions" and "billions", Sagan stressed the "b". Sagan never did, however, say "
billions and billions ''Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium'' is a 1997 book by the American astronomer and science popularizer Carl Sagan. The last book written by Sagan before his death in 1996, it was published by Rando ...
". The public's association of the phrase and Sagan came from a ''
Tonight Show ''The Tonight Show'' is an American late-night talk show that has aired on NBC since 1954. The show has been hosted by six comedians: Steve Allen (1954–1957), Jack Paar (1957–1962), Johnny Carson (1962–1992), Jay Leno (1992–2009 and 2010â ...
'' skit. Parodying Sagan's affect,
Johnny Carson John William Carson (October 23, 1925 â€“ January 23, 2005) was an American television host, comedian, writer and producer. He is best known as the host of ''The Tonight Show Starring Johnny Carson'' (1962–1992). Carson received six Pr ...
quipped "billions and billions".Carl Sagan takes questions more from his 'Wonder and Skepticism' CSICOP 1994 keynote, Skeptical Inquirer
The phrase has, however, now become a humorous fictitious unit—the sagan. Aside from using the catchphrase as the title of the book, Sagan's introduction also discusses it.


References


External links


A review
of the book
Video of skit
from ''
The Tonight Show Starring Johnny Carson ''The Tonight Show Starring Johnny Carson'' was an American late-night talk show hosted by Johnny Carson on NBC, the third iteration of the ''Tonight Show'' franchise. The show debuted on October 1, 1962, and aired its final episode on May 22, ...
'' mentioning "billions and billions" {{Carl Sagan 1997 non-fiction books American non-fiction books Books published posthumously English-language books Random House books Popular physics books Works by Carl Sagan