Astrophysicist Shep Doeleman explains how capturing the first image of a black hole required a telescope the size of the world, and why the next goal is to create a movie.
Imagine you have a 10GA steel box with a 1" dia hole in the bottom. You want to plug it to make sure it is watertight. Now the only patch you have is a large 3/8" thick stainless plate that is much bigger than the hole.…