A stunning, hugely informative new composite image from the Hubble, Spitzer, and Chandra observatories. There is a whole heck of a lot going on in our galactic center, including a super-massive black hole.
This makes me think, again, about the Wow Signal. It came from the Sagittarius region, which is kinda, pretty much, where the black hole is. Those things emit scads of energy.
Like the tag says, Extremely Amateur Astronomy. Please consult Phil Plait (who mentions nothing about the WS) for expertise.