Black holes are cosmic prisons, where nothing escapes, not light or even data. But lots did come out of Wednesday’s first image of the shadowy edge of a supermassive black hole. Here are four things we learned:
![](https://3c1703fe8d.site.internapcdn.net/newman/csz/news/tmb/2019/seeingisbeli.jpg)
Source: https://phys.org/news/2019-04-believing-lessons-black-hole-image.html