Scientists for the first time have measured the instantaneous mind-blowing power of jets blasting from a black hole. The international team reported Thursday that the jet power from Cygnus 1-X, a relatively close black hole-star system, is equivalent to 10,000 suns. And the jet speed is roughly half the speed of light. Cygnus X-1 features not only a black hole but a blue supergiant star, its constant companion. This binary system is located in our Milky Way’s Cygnus, or swan, constellation. The findings appear in the journal Nature Astronomy.