Could they be about to share a photo of a black hole's event horizon? via Science Alert: The European Southern Observatory has just revealed there will be a huge announcement next week. Yes, we know how that sounds - but as far as we can tell, it appears the world is about to finally see the first ever photo of a black hole's event horizon. Of course, we won't know for sure until the press event itself, which we will cover live on our site. But here's a massive clue: according to the advance statement, the researchers will be discussing the "first result from the Event Horizon Telescope." For years, the Event Horizon Telescope has been staring into the heart of the Milky Way, trying to obtain a photo of the location of Sagittarius A*, our galaxy's central supermassive black hole. It's no mean feat: black holes themselves are, literally, invisible - they absorb all electromagnetic radiation, which means none of our telescopes - radio, X-ray, optical, gamma-ray - can detect them. That's