After decades of debating the existence of black holes, astronomers have finally captured the first-ever photo of one.
The photo shows a black circle surrounded by a halo of orange light. Harvard astronomer Sheperd Doeleman called the photo "the strongest evidence that we have to date for the existence of black holes".
The photo was taken by the Event Horizon Telescope, or EHT, of a black hole at the center of the neighboring Messier 87 galaxy, about 55 million light years from Earth.
Watch this video to learn about what the picture shows us.