File:Polycyclic Aromatic Hydrocarbons In Space.jpg
Summary
<a rel="nofollow" class="external free" href="http://www.spitzer.caltech.edu/images/3230-sig10-013-Bright-Lights-Green-City">http://www.spitzer.caltech.edu/images/3230-sig10-013-Bright-Lights-Green-City</a>
Two extremely bright <a href="//commons.wikimedia.org/wiki/Star" title="Star">stars</a> illuminate a <a href="//commons.wikimedia.org/wiki/Green" title="Green">greenish</a> <a href="//commons.wikimedia.org/wiki/Mist" title="Mist">mist</a> in this image from the <a href="//commons.wikimedia.org/wiki/Category:Spitzer_space_telescope_(spacecraft)" title="Category:Spitzer space telescope (spacecraft)">Spitzer Space Telescope's</a> "GLIMPSE360" survey. This mist is comprised of <a href="//commons.wikimedia.org/wiki/Hydrogen" title="Hydrogen">hydrogen</a> and <a href="//commons.wikimedia.org/wiki/Carbon" title="Carbon">carbon</a> compounds called polycyclic aromatic hydrocarbons (PAHs), which also are found here on <a href="//commons.wikimedia.org/wiki/Earth" title="Earth">Earth</a> in sooty <a href="//commons.wikimedia.org/wiki/Vehicle" class="mw-redirect" title="Vehicle">vehicle</a> <a href="//commons.wikimedia.org/wiki/Category:Exhaust" title="Category:Exhaust">exhaust</a> and on charred <a href="//commons.wikimedia.org/wiki/Grill" title="Grill">grills</a>. In <a href="//commons.wikimedia.org/wiki/Space" class="mw-redirect" title="Space">space</a>, PAHs form in the dark <a href="//commons.wikimedia.org/wiki/Cloud" title="Cloud">clouds</a> that give rise to stars. These <a href="//commons.wikimedia.org/wiki/Category:Molecules" title="Category:Molecules">molecules</a> provide <a href="//commons.wikimedia.org/wiki/Category:Astronomers" title="Category:Astronomers">astronomers</a> a way to visualize the peripheries of gas clouds and study their structures in great detail. They are not actually green; but are color coded in these images to allow scientists see their glow in <a href="//commons.wikimedia.org/wiki/Category:Infrared" title="Category:Infrared">infra-red</a>.
This image is a combination of data from Spitzer and the Two-Micron All-Sky Survey (2MASS).
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:53, 5 January 2017 | | 6,000 × 4,500 (4.52 MB) | 127.0.0.1 (talk) | <a rel="nofollow" class="external free" href="http://www.spitzer.caltech.edu/images/3230-sig10-013-Bright-Lights-Green-City">http://www.spitzer.caltech.edu/images/3230-sig10-013-Bright-Lights-Green-City</a> <p>Two extremely bright <a href="//commons.wikimedia.org/wiki/Star" title="Star">stars</a> illuminate a <a href="//commons.wikimedia.org/wiki/Green" title="Green">greenish</a> <a href="//commons.wikimedia.org/wiki/Mist" title="Mist">mist</a> in this image from the <a href="//commons.wikimedia.org/wiki/Category:Spitzer_space_telescope_(spacecraft)" title="Category:Spitzer space telescope (spacecraft)">Spitzer Space Telescope's</a> "GLIMPSE360" survey. This mist is comprised of <a href="//commons.wikimedia.org/wiki/Hydrogen" title="Hydrogen">hydrogen</a> and <a href="//commons.wikimedia.org/wiki/Carbon" title="Carbon">carbon</a> compounds called polycyclic aromatic hydrocarbons (PAHs), which also are found here on <a href="//commons.wikimedia.org/wiki/Earth" title="Earth">Earth</a> in sooty <a href="//commons.wikimedia.org/wiki/Vehicle" class="mw-redirect" title="Vehicle">vehicle</a> <a href="//commons.wikimedia.org/wiki/Category:Exhaust" title="Category:Exhaust">exhaust</a> and on charred <a href="//commons.wikimedia.org/wiki/Grill" title="Grill">grills</a>. In <a href="//commons.wikimedia.org/wiki/Space" class="mw-redirect" title="Space">space</a>, PAHs form in the dark <a href="//commons.wikimedia.org/wiki/Cloud" title="Cloud">clouds</a> that give rise to stars. These <a href="//commons.wikimedia.org/wiki/Category:Molecules" title="Category:Molecules">molecules</a> provide <a href="//commons.wikimedia.org/wiki/Category:Astronomers" title="Category:Astronomers">astronomers</a> a way to visualize the peripheries of gas clouds and study their structures in great detail. They are not actually green; but are color coded in these images to allow scientists see their glow in <a href="//commons.wikimedia.org/wiki/Category:Infrared" title="Category:Infrared">infra-red</a>. </p> This image is a combination of data from Spitzer and the Two-Micron All-Sky Survey (2MASS). |
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