![Twin jets emanating from the heart of an active galaxy: NGC 1052 at three millimetre wavelength, observed with the Global Millimetre VLBI Array.](/fileadmin/_processed_/8/f/csm_0915kadler-jets1-www_66872f7176.jpg)
German astronomers have measured the exact location of a black hole and the magnetic field near the event horizon. They show that magnetic fields are capable of providing enough magnetic energy to power strong relativistic jets in active galaxies.
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