X-Ray Vision

If you actually had the ability to see X-Rays, the world around you would look pretty boring.  Actually it would be invisible, since nothing around you gives off X-rays.  You might be able to see an imaging device if you live or work near a medical office, but that’s about it.  If you looked at the night sky, you would see many interesting sources of X-Ray light, mostly from active black holes in our own galaxy and beyond.  Recently a high-resolution scan of the Andromeda Galaxy revealed a plethora of sources, showing where black holes and neutron stars are feeding...