The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high likelihood of its existence. As a 2015 article put it, "If life is so easy, someone from somewhere must have come calling by now."
The search for extraterrestrial intelligence (SETI) is a collective term for scientific searches for intelligent extraterrestrial life, for example, monitoring electromagnetic radiation for signs of transmissions from civilizations on other planets.
Contact is a 1985 hard science fiction novel by American scientist Carl Sagan. It deals with the theme of contact between humanity and a more technologically advanced extraterrestrial life form. It ranked No. 7 on the 1985 U.S. bestseller list. The only full work of fiction published by Sagan, the novel originated as a screenplay by Sagan and Ann Druyan in 1979; when development of the film stalled, Sagan decided to convert the stalled film into a novel. The film concept was subsequently revived and eventually released in 1997 as the film Contact starring Jodie Foster.
Extraterrestrial intelligence (ETI), a subset of non-human intelligence (NHI), refers to hypothetical intelligent extraterrestrial life. No such life has ever been proven to exist in the Solar System except for humans on Earth, and its existence in other star systems is still speculative. The question of whether other inhabited worlds might exist has been debated since ancient times. The modern form of the concept emerged when the Copernican Revolution demonstrated that the Earth was a planet revolving around the Sun, and other planets were, conversely, other worlds. The question of whether other inhabited planets or moons exist was a natural consequence of this new understanding. It has become one of the most speculative questions in science and is a central theme of science fiction and popular culture.
Ted Chiang is an American science fiction writer. His work has won four Nebula awards, four Hugo awards, the John W. Campbell Award for Best New Writer, and six Locus awards. His short story "Story of Your Life" was the basis of the film Arrival (2016). He was an artist in residence at the University of Notre Dame in 2020–2021. Chiang is also a frequent non-fiction contributor to the New Yorker Magazine, most recently on topics related to computer technology, such as artificial intelligence.
Jill Cornell Tarter is an American astronomer best known for her work on the search for extraterrestrial intelligence (SETI). Tarter is the former director of the Center for SETI Research, holding the Bernard M. Oliver Chair for SETI at the SETI Institute. In 2002, Discover magazine recognized her as one of the 50 most important women in science.
The Great Filter is the idea that, in the development of life from the earliest stages of abiogenesis to reaching the highest levels of development on the Kardashev scale, there is a barrier to development that makes detectable extraterrestrial life exceedingly rare. The Great Filter is one possible resolution of the Fermi paradox.
The Xeelee Sequence[a] is a series of hard science fiction novels, novellas, and short stories written by British science fiction author Stephen Baxter. The series spans billions of years of fictional history, centering on humanity's future expansion into the universe, its intergalactic war with an enigmatic and supremely powerful Kardashev Type V alien civilization called the Xeelee, and the Xeelee's own cosmos-spanning war with dark matter entities called Photino Birds. The series features many other species and civilizations that play a prominent role, including the Squeem, the Qax, and the Silver Ghosts. Several stories in the Sequence also deal with humans and posthumans living in extreme conditions, such as at the heart of a neutron star (Flux), in a separate universe with considerably stronger gravity (Raft), and within eusocial hive societies (Coalescent).
The Arecibo Telescope was a 305 m (1,000 ft) spherical reflector radio telescope built into a natural sinkhole at the Arecibo Observatory located near Arecibo, Puerto Rico. A cable-mount steerable receiver and several radar transmitters for emitting signals were mounted 150 m (492 ft) above the dish. Completed in November 1963, the Arecibo Telescope was the world's largest single-aperture telescope for 53 years, until it was surpassed in July 2016 by the Five-hundred-meter Aperture Spherical Telescope (FAST) in Guizhou, China.
Active SETI is the attempt to send messages to intelligent extraterrestrial life. Active SETI messages are predominantly sent in the form of radio signals. Physical messages like that of the Pioneer plaque may also be considered an active SETI message. Active SETI is also known as METI.
The Listeners is a 1972 science fiction novel by American author James Gunn. It centers on the search for interstellar communication and the effect that receipt of a message has. Although the search and the message are the unifying background of the novel, the chapters explore the personal effect of these events have on the lives of the characters.
"The Fermi Paradox Is Our Business Model" is a science fiction short story by American writer Charlie Jane Anders. It was first published in the online magazine Tor.com August 11, 2010.
The cultural impact of extraterrestrial contact is the corpus of changes to terrestrial science, technology, religion, politics, and ecosystems resulting from contact with an extraterrestrial civilization. This concept is closely related to the search for extraterrestrial intelligence (SETI), which attempts to locate intelligent life as opposed to analyzing the implications of contact with that life.
Arrival is a 2016 American science fiction drama film directed by Denis Villeneuve and adapted by Eric Heisserer, who conceived the project as a spec script based on the 1998 short story "Story of Your Life" by Ted Chiang. The film stars Amy Adams as Louise Banks, a linguist enlisted by the United States Army to discover how to communicate with extraterrestrials who have arrived on Earth before tensions lead to war. Jeremy Renner, Forest Whitaker, and Michael Stuhlbarg appear in supporting roles.
SUPERCOMMUNITY is an editorial project by e-flux journal commissioned for the 56th Venice Biennale and supported by Wuhan Art Terminus (WH.A.T.), Remai Modern Art Gallery of Saskatchewan, and Microclima. Since launching on May 5, 2015, texts are published Tuesday–Sunday at the Biennale and on the supercommunity online platform. All the World's Futures, the 2015 Venice Biennale was curated by Okwui Enwezor.
Wait But Why (WBW) is a website founded by Tim Urban and Andrew Finn and written and illustrated by Urban. The site covers a range of subjects as a long-form blog. Typical posts involve long-form discussions of various topics, including artificial intelligence, outer space, and procrastination, using a combination of prose and rough illustrations.
METI International, known simply as METI, is a non-profit research organization founded in July 2015 by Douglas Vakoch that creates and transmits interstellar messages to attempt to communicate with extraterrestrial civilizations. It is based in San Francisco, California.
Exhalation: Stories is a collection of short stories by American writer Ted Chiang. The book was initially released on May 7, 2019, by Alfred A. Knopf.
The Great Silence is a 1968 an Italian-French Spaghetti Western directed and co-written by Sergio Corbucci.
"The Evolution of Human Science" is a science fiction short story by American writer Ted Chiang, published in June 2000 in Nature. The story was also included in the collection Stories of Your Life and Others (2002).
