18 DEC: Galaxy 1068 is shown in visible light and X-rays in this composite image. High-energy X-rays (magenta) captured by NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, are overlaid on visible-light images from both NASA’s Hubble Space Telescope and the Sloan Digital Sky Survey. The X-ray light is coming from an active supermassive black hole, also known as a quasar, in the centre of the galaxy.
This supermassive black hole has been extensively studied due to its relatively close proximity to our galaxy. NuSTAR’s high-energy X-ray view is the first to penetrate the walls of this black hole’s hidden lair. PHOTO: NASA/JPL-Caltech/Roma Tre Univ.
Find out more about black holes: bbc.in/ science_black_holes
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