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Astronomers have captured the first view of polarized light and the magnetic fields that surround Sagittarius A* (Sgr A*), the supermassive black hole at the heart of the Milly Way.
The new EHT observation of Sgr A*, therefore, suggests that strong and well-organized magnetic fields could be common to all black holes.
M87 is quite a special black hole: It is 6 billion solar masses, it lives in a giant elliptical galaxy, and it ejects a powerful jet of plasma visible at all wavelengths.
This image shows the jet in the M87 galaxy in polarized light, as captured by ALMA. This image reveals the structure of the magnetic field along the jet. (Image credit: ALMA (ESO/NAOJ/NRAO), Goddi et al.)