Image Credit & Copyright: Alain Riazuelo
Explanation: What would you see if you went right up to a black hole?Featured is acomputer generated image highlighting how strange things would look. The black holehas such strong gravity that light is noticeably bent towards it - causing some very unusualvisual distortions. Every star in the normal frame has at least two bright images - one on each side of theblack hole. Near theblack hole, you can see the whole sky - light fromevery direction is bentaroundand comes back to you. The original background map was taken from the2MASSinfrared sky survey, with stars from theHenry Drapercatalog superposed. Black holesare thought to be the densest state of matter, and there isindirect evidencefor their presence instellar binary systems and the centers ofglobular clusters,galaxies, andquasars.
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