Search for extraterrestrial intelligence

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.^[1]^[2]^[3]

Scientific investigation began shortly after the advent of radio in the early 1900s, and focused international efforts have been ongoing since the 1980s.^[4] In 2015, Stephen Hawking and Israeli billionaire Yuri Milner announced the Breakthrough Listen Project, a $100 million 10-year attempt to detect signals from nearby stars.^[5]

^ Schenkel, Peter (May–June 2006). "SETI Requires a Skeptical Reappraisal". Skeptical Inquirer. Vol. 30, no. 3. Archived from the original on 2009-11-05. Retrieved June 28, 2009.
^ Moldwin, Mark (November 2004). "Why SETI is science and UFOlogy is not" (PDF). Skeptical Inquirer. Archived (PDF) from the original on 2022-06-21. Retrieved 2022-06-11.
^ Johnson, Steven (28 June 2017). "Greetings, E.T. (Please Don't Murder Us.)". New York Times. Archived from the original on 19 July 2018. Retrieved 28 June 2017.
^ Cite error: The named reference SETI at 50 was invoked but never defined (see the help page).
^ Katz, Gregory (July 20, 2015). "Searching for ET: Hawking to look for extraterrestrial intelligence". AP News. Archived from the original on July 22, 2015. Retrieved July 20, 2015.

[Schenkel_2006-1] Schenkel, Peter (May–June 2006). "SETI Requires a Skeptical Reappraisal". Skeptical Inquirer. Vol. 30, no. 3. Archived from the original on 2009-11-05. Retrieved June 28, 2009.

[2] Moldwin, Mark (November 2004). "Why SETI is science and UFOlogy is not" (PDF). Skeptical Inquirer. Archived (PDF) from the original on 2022-06-21. Retrieved 2022-06-11.

[NYT-20170628-3] Johnson, Steven (28 June 2017). "Greetings, E.T. (Please Don't Murder Us.)". New York Times. Archived from the original on 19 July 2018. Retrieved 28 June 2017.

[SETI_at_50-4] Cite error: The named reference SETI at 50 was invoked but never defined (see the help page).

[AP-20150720-5] Katz, Gregory (July 20, 2015). "Searching for ET: Hawking to look for extraterrestrial intelligence". AP News. Archived from the original on July 22, 2015. Retrieved July 20, 2015.

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