Researchers at Harvard University have been actively involved with SETI since the late 1970s. The first high resolution Harvard search took place in 1978 at Arecibo (see Harvard-Arecibo off-line SETI). This was followed by "Suitcase SETI" (1981–1982), Project Sentinel (1983–1985), Project META (1985–1994), and Project BETA (1995– ).