NASA | X-ray 'Echoes' Probe Habitat of Monster Black Hole

The video discusses NGC 4151, focusing on its central black hole and surrounding accretion disk. Scientists using the XMM Newton X-ray satellite discovered that X-ray flares occur above the disk. These flares illuminate the inner disk after a delay, providing the first clear measurement of this effect. This discovery helps in understanding the spatial arrangement of the flares and the disk. Future X-ray telescope missions aim to use these flares to map the surroundings of distant black holes more precisely.

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