Why is the magnetic field in Centaurus A's jet so unexpectedly strong?

Using infrared data from the Herschel telescope, astronomers measured where electrons stop radiating efficiently in Centaurus A's northern jet lobe. The spectral break—where the radiation suddenly weakens—reveals a magnetic field of at least 100 microgauss, far exceeding what minimum-energy models allow. This suggests jets pump far more magnetic energy into lobes than previously thought, reshaping our understanding of how supermassive black holes energize their surroundings.