Every image you've ever seen of a black hole has been a simulation.
This "Photo" is bogus. It is a computer painting.
The parabolic reflector functions due to the geometric properties of the paraboloidal shape: any incoming
ray that is parallel to the axis of the dish will be reflected to a central point, or "
focus". (For a geometrical proof, click
here.) Because many types of energy can be reflected in this way, parabolic reflectors can be used to collect and concentrate energy entering the reflector at a particular angle. Similarly, energy radiating from the focus to the dish can be transmitted outward in a beam that is parallel to the axis of the dish.
https://en.wikipedia.org/wiki/Parabolic_reflector
BLACKHOLE LIVES MATTER
The image emerged from two years of computer analysis of
eight radio observatories on six mountains and four continents observed the galaxy in Virgo
The telescope array also monitored a dim source of radio noise called Sagittarius A* (pronounced Sagittarius A-star), at the heart of our Milky Way galaxy. There, 26,000 light-years from Earth, and cloaked in interstellar dust and gas, lurks another black hole, with a mass of 4.1 million suns.
Still, questions about gravity and the universe abound. “We know there must be something more,” Avery Broderick, a physicist at the University of Waterloo, in Ontario, told the audience in Washington, D.C. “Black holes are one of the places to look for answers.”
Tiny details would be a challenge for even the biggest individual telescope.
Moreover, the view is blurred by the charged particles such as electrons and protons that fill interstellar space. “It’s like looking through frosted glass,” said Dr. Doeleman To see into the shadows, astronomers needed to be able to tune their radio telescope to shorter wavelengths. And they needed a bigger telescope. For two years, the Event Horizon team reduced and collated the results. The data were too voluminous to transmit over the internet
“There were clear signatures of a ringlike structure,” he said. After dinner, he went to his office and made some crude calculations. “That was one of those great moments,” he said. “It was a surprise how clear this image is.”
https://www.nytimes.com/2019/04/10/science/black-hole-picture.html
It Took Half a Ton of Hard Drives to Store the Black Hole Image Data
The newly released image of a black hole (below) is a watershed moment for physics. Finally, we can put some of Einstein’s most famous predictions from a century ago to the test, but it was not as easy as pointing a big lens at the M87 galaxy and pressing a button. It took years of work and the collaboration of more than 200 scientists to make it happen. It also required about half a ton of hard drives.
Data collection for the historic black hole image began in 2017 with a coordinated effort called the Event Horizon Telescope (EHT). That isn’t a single instrument but rather a collection of seven radio telescopes from around the world. The EHT used a principle called interferometry to combine the capacity of all those telescopes, creating a “virtual” telescope the size of the Earth.
The EHT had to collect a huge volume of data to deliver us this one image.
According to Marrone, 5 petabytes is equal to 5,000 years of MP3 audio. There’s simply no way to send that much data efficiently over the internet. It’s faster to actually ship the hard drives to collaborators around the world. That’s why MIT has 1,000 pounds of hard drives sitting in its Haystack Observatory labs.
https://www.extremetech.com/extreme...ard-drives-to-store-eht-black-hole-image-data