[1][2] With $100 million in funding and thousands of hours of dedicated telescope time on state-of-the-art facilities,[3] it is the most comprehensive search for alien communications to date.[6] The project aims to discover signs of extraterrestrial civilizations by searching stars and galaxies for radio signals and laser transmissions.[4] The FAST radiotelescope in China also joined forces in October 2016 with the Breakthrough Initiatives to launch a coordinated search, including the rapid sharing of promising new signals for additional observation and analysis.[12] Breakthrough Listen was announced to the public on July 20, 2015 (the anniversary of the Apollo 11 Moon landing) by Milner at London's Royal Society.[4] The targets for the Automated Planet Finder will closely match those of the Green Bank radio search, with small adjustments due to the telescope's much smaller field of view.[18] In October 2019 it was announced that Breakthrough Listen will collaborate with scientist from NASA's Transiting Exoplanet Survey Satellite (TESS) team.[19][20] Breakthrough Listen Exotica Catalog is a list of 700 targets that were chosen "to include "one of everything" in the observed Universe – ranging from comets to galaxies, from mundane objects to the most rare and violent celestial phenomena".Breakthrough Initiatives are developing open source software to assist users in understanding and analyzing the data, which are available on GitHub under UCBerkeleySETI.
Physicist
Stephen Hawking
was among the scientists who co-signed an open letter of support for Breakthrough Listen.