Gravitational waves are a reality, according to scientists from an institution that has been hoping to observe them. “We have detected gravitational waves. We did it,” said David Reitze, executive director of LIGO, the Laser Interferometer Gravitational-Wave Observatory. The discovery, based on ripples in space-time detected by LIGO, supports a prediction made by Albert Einstein that’s essential to his general theory of relativity. The ripples LIGO detected are based on […]