https://www.cnet.com/news/first-black-hole-picture-revealed-first-look-from-across-the-universe/

"The observations were a coordinated dance in which we simultaneously pointed our telescopes in a carefully planned sequence," said Marrone, who traveled to Antarctica several times to integrate the South Pole Telescope into the EHT array.

Besides just being cool, seeing the exact shape of a black hole for the first time was a big deal for science. That's because it could either confirm or cast doubt upon theories of gravity developed by Albert Einstein over a century ago that are fundamental to our understanding of the universe and the laws of physics that govern our daily lives.