Black hole jets are powerful streams of particles and magnetic fields ejected from the regions surrounding supermassive black holes. These jets, often spanning hundreds of thousands of light-years, play a crucial role in shaping the environments around galaxies by injecting energy into the intergalactic medium. They can influence the growth of galaxies, the distribution of matter, and the magnetic fields within the cosmic web. Now, researchers have found the biggest one to date. So big we need to change the physics booksThe newly discovered black hole-driven jets extend over 7 megaparsecs or 2…