Five interferometers in the world are going to produce scientific data
before 2004 (VIRGO and GEO in Europe, the two LIGO interferometers in
the US and TAMA in Japan). An Australian interferometer is under project
while Japan is planning the construction of a second generation cryogenic
frequencies which are out of reach from the ground because of the environment
noise and of the limited baseline.
Gravitational waves research in the world