The European Pulsar Timing Array (EPTA) is a pulsar timing array in Europe: a consortium of radio telescopes timing pulsars. It is an effort to detect gravitational waves through comparison of the timing of observed pulsar cycles. It is included in the International Pulsar Timing Array. The EPTA uses the telescopes:
EPTA+ refers to a subset of 42 of the pulsars, considered to be a particularly reliable and useful sample, whose timing data has been used in some specific studies.