The project is sponsored by a generous grant from film director Steven Spielberg. His 21 cm search receives Planetary Society support in 1987, but ends with the closing of HRRO in 1988 due to lack of funding. Program operates 21cm search continuously from 1988-1991. Program comes to unexpected halt with closure of ARO in 1991. Publication terminated in 1998, after sixteen issues.
Observations continue for six months.
Michel Mayor and Dedier Queloz. By 1999, roster of confirmed exoplanets grows to over twenty. End of Project. The SETI Institute's Project Phoenix continues its targeted search from the Arecibo Radio Observatory in Puerto Rico. The author's request for additional material following the initial draft publication produced a wealth of information from many contributors.