Join CNN’s Wonder Theory science newsletter for the latest updates. Dive into the wonders of the universe with exciting news on groundbreaking discoveries, scientific advancements, and much more. Astronomers have detected a colossal pair of jets emerging from a supermassive black hole located 7.5 billion light-years from our planet. Stretching across an impressive 23 million light-years, these jets are the largest ever observed, according to cutting-edge findings published in a recent study.