On Thursday morning (10:30 EST, 15:30 GMT) scientists will make what they are calling a major gravitational wave announcement.

The scientists are being pretty coy about it, and after a century of looking for gravitational waves, you can understand their caution about not wanting the cat to slip out of the bag.

However, credible rumors have been swirling about the discovery of gravitational waves emanating from a binary black hole, and physicists associated with the National Science Foundation-funded project are expected to discuss this new research during their presentation.

The United States has two major facilities, each consisting of a large interferometer, to detect gravitational waves. One is based in Hanford, Washington, and the other is in Livingston, Louisiana. Ars will be on hand at the Louisiana facility to bring you news of the announcement, potentially one of the most important scientific findings of modern times.