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US-SPACE-ORION-NEBULA
This NASA handout image received 08 November 2006 from NASA's Spitzer and Hubble Space Telescopes, shows the Orion nebula in an explosion of infrared, ultraviolet, and visible-light colors. It was "painted" by hundreds of baby stars on a canvas of gas and dust, with intense ultraviolet light and strong stellar winds as brushes. At the heart of the artwork is a set of four monstrously massive stars, collectively called the Trapezium. These behemoths are approximately 100,000 times brighter than our sun. Their community can be identified as the yellow smudge near the center of the composite. The swirls of green were revealed by Hubble's ultraviolet and visible-light detectors. They are hydrogen and sulfur gases heated by intense ultraviolet radiation from the Trapezium's stars. Wisps of red and orange detected by Spitzer indicate infrared light from illuminated clouds containing carbon-rich molecules called polycyclic aromatic hydrocarbons. On Earth, polycyclic aromatic hydrocarbons are found on burnt toast and in automobile exhaust. This image is a false-color composite, in which light detected at wavelengths of 0.43, 0.50, and 0.53 microns is blue. Light with wavelengths of 0.6, 0.65, and 0.91 microns is green. Light of 3.6 microns is orange, and 8-micron light is red. AFP PHOTO/NASA/JPL/HO =GETTY OUT=
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Detalii fotografie |
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-, SPACE |
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AFP / Mediafax Foto |
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| Fotograf: |
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HO |
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| Data: |
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8 Noiembrie 2006 |
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2048 x 2048 (741.19 KB) |
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