... The Most Distant X Ray Jet . ... Illustration by M.Weiss ( CXC ) Explanation: A false-color x-ray image inset at upper left reveals emission from a cosmic jet of high-energy particles, 100,000 light-years in length, emerging from quasar GB1508+5714 . ... Here, as depicted in the illustration, the accretion disk is thought to surround a supermassive black hole , accelerating particles to near the speed of light in two jets at right angles to the disk itself. ... Heavy Black Hole Jets in 4U1630 47 . ...