Event Horizon
Here you go, space nerds: the first ever image of the event horizon of a black hole! The supermassive black hole at the center of galaxy M87 is 54 million light-years from earth and has a mass of 6.5 billion suns.
The close-up image is from the Event Horizon Telescope, the wide-field view from the Chandra X-ray Observatory.
Early analysis suggests the observations are consistent with Einstein's Theory of General Relativity (some were hoping they would conflict, because having to redo all the theories is kind of exciting).
Download a high-res version of the image here: https://www.flickr.com/photos/lightsinthedark/47579266551/
Originally posted on Facebook.