Search for extraterrestrial intelligence
Effort to find civilizations not from Earth / From Wikipedia, the free encyclopedia
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"SETI" redirects here. For other uses, see SETI (disambiguation).
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]