
One of the most distant quasars known, shining at us from when the universe was only five percent of its current age. Its black hole already weighed 800 million Suns, which is the puzzle: by every standard recipe, there was not enough time to grow it. Either black holes were born big, or they grew in ways we have not understood yet. The early universe keeps grading our homework.
🚀 Fly there in the 3D universe