Images Dated 4th December 2001
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Choose from 13 pictures in our Images Dated 4th December 2001 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.
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Featured 4 Dec 2001 Print
Energy-releasing black hole
Energy-releasing black hole. Computer artwork of the energy-releasing black hole (upper left) in galaxy MCG -6-30-15. The energy around this black hole was measured by astronomers, using ESA's XM Newton X-ray observatory. It was found to be greater than expected. The extra energy is thought to be rotational energy extracted when the black hole's spin is slowed by the twisting of magnetic field lines close to its border (event horizon). The gravity in this region is strong enough to twist the fabric of space-time, resulting in the tightening of the magnetic field lines that slows the spin of the hole. The energy released by the slowed hole heats surrounding gas
© NASA/SCIENCE PHOTO LIBRARY
