“Mozart’s music is like an X-ray of your soul – it shows what is there, and what isn’t.” -Isaac Stern
When supermassive black holes have a large amount of matter fall onto them, they accelerate a large amount of the ionized material — particularly electrons — into high-velocity, bi-directional jets. In many cases, those jets of material collide with previously blown-off gaseous material and create high-energy X-rays.
While these can often be visible across the cosmos, it’s very rare to have a jet so large. The galaxy Pictor A, imaged by Chandra over a 15 year timescale, has the longest known such jet at 300,000 light years, culminating in a “hot spot” shockwave, where the electrons collide with the gas at greater than the speed of sound. A counterjet, invisible with all other telescopes, was also found by Chandra.