This animation shows the binary black hole system of OJ 287. Every 12 years, the smaller black hole punches through the accretion disk of the larger black hole and results in a flash of light that is over a trillion times brighter than the sun.

This animation shows the binary black hole system of OJ 287. Every 12 years, the smaller black hole punches through the accretion disk of the larger black hole and results in a flash of light that is over a trillion times brighter than the sun.