The black hole information paradox is a puzzle resulting from the combination of quantum mechanics and general relativity.Calculations suggest that physical information could permanently disappear in a black hole, allowing many physical states to devolve into the same state.

We have just seen the first image of a black hole, the supermassive black hole in the galaxy M87 with a mass 6.5 billion times that of our sun. The Biggest Black Hole Findings of 2019.

1. Each ring is like a mirror image of the black hole at different points in its history, not unlike the rings of a tree. Black holes warp space and time to such an extreme that inside the black hole's horizon, space and time actually swap roles.

... new paper says.

So, like the infinite reflections of a person surrounded in mirrors, the stacked images provide enough data to learn the black hole’s essential properties: mass and spin. But what is that image … In a sense, it really is time that pulls you in toward the singularity. Astronomers have taken the first ever image of a black hole, which is located in a distant galaxy. The rings also betray how the black hole warps space-time. Many are the gravitational tombstones of stars that burned up their fuel and collapsed. A planet-sized network of radio telescopes has assembled the first image of a black hole. ... pixelated image is actually a black hole as big as the solar system and 6.5 billion times the mass of our sun.

He and other authors of the paper are also members of the team operating the Event Horizon Telescope, a globe-girding network of radio telescopes that made that first image of a black hole.