Abstract
The existence of gravitational radiation is a prediction of Einstein’s theory of general relativity. Gravitational waves are perturbations in the curvature of spacetime caused by accelerated masses. Only astrophysical events (e.g., supernovae) or compact objects (e.g., black holes and neutron stars) produce detectable wave amplitudes. Since the 1960’s gravitational wave detectors are built and have constantly been improved. The present day generation of resonant mass antennas and laser interferometers has reached the necessary sensitivity to detect gravitational waves from sources in the Milky Way. Within a few years the next generation of detectors will open the field of gravitational wave astronomy.
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