New Study Confirms Gravitational Waves' Black Hole Background
![New Study Confirms Gravitational Waves' Black Hole Background](http://cdn1.img.sputniknews.com/images/104159/44/1041594457.jpg)
Scientists studying black holes at the observatory where gravitational waves were discovered last year have detected another wave, and say it's just the tip of the iceberg.
Scientists studying black holes at the observatory where gravitational waves were discovered last year have detected another wave, and say it's just the tip of the iceberg.