How to take a picture of a black hole | Katie Bouman
At the heart of the Milky Way, there's a supermassive black hole that feeds off a spinning disk of hot gas, sucking up anything that ventures too close -- even light.
========== In the movie "Interstellar," we get an up-close look
at a supermassive black hole. Set against a backdrop of bright gas, the black hole's massive
gravitational pull bends light into a ring. However, this isn't a real photograph, but a computer graphic rendering -- an artistic interpretation
of what a black hole might look like. A hundred years ago, Albert Einstein first published
his theory of general relativity. In the years since then, scientists have provided
a lot of evidence in support of it. But one thing predicted
from this theory, black holes, still have not been directly observed. Although we have some idea
as to what a black hole might look like, we've never actually taken
a picture of one before. However, you might be surprised to know
that tha...