Laurent Aigon, a waiter by trade, built his son a fully-functional flight simulator cockpit for a 737 in his room. The simulator was so accurate and well-made that it's attracted the attention of local pilots who use it for real training!
What's happening at the center of active galaxy 3C 75? The two bright sources at the center of this composite x-ray (blue)/ radio (pink) image are co-orbiting supermassive black holes powering the giant radio source 3C 75. Surrounded by multimillion degree x-ray emitting gas, and blasting out jets of relativistic particles the supermassive black holes are separated by 25,000 light-years.