SERENDIP (Search for Extraterrestrial Radio Emissions from Nearby Developed Intelligent Populations) is a Search for Extra-Terrestrial Intelligence (SETI) program originated by the Berkeley SETI Research Center at the University of California, Berkeley.
[1] SERENDIP takes advantage of ongoing "mainstream" radio telescope observations as a "piggy-back" or "commensal" program.
Subsequent instruments have been significantly more capable, with the number of channels doubling roughly every year.
[4] The program has found around 400 suspicious signals, but there is not enough data to prove that they belong to extraterrestrial intelligence.
[5] In September–October 2004 the media wrote about Radio source SHGb02+14a and its artificial origin, but scrutiny has not been able to confirm its connection with an extraterrestrial civilization.