File:Gravitational Lensing (9822270605).jpg
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Summary
editDescriptionGravitational Lensing (9822270605).jpg |
This diagram illustrates a cosmic phenomenon known as gravitational lensing, in which a nearby galaxy distorts, but also magnifies a second, more distant galaxy in the background, making it appear brighter and easier to study. In the diagram, Earth is shown to the left. A foreground galaxy is shown in blue. A more distant galaxy is shown in red. The gravity of the foreground galaxy bends the light from the distant one, as shown with the lines. The lensing effect leads to a distorted and magnified view of the distant galaxy. An example of a final image taken by ground-based telescopes is at the right, where in blue is the visible light from the foreground galaxy and in pink is the sub-millimeter wavelength emission from the background galaxy. As illustrated on the bottom, the lensing effect due to gravity can be compared to bending of light when passing through a medium of varying index of refraction, such as a glass containing water. The light bending through water results in a distorted view of the background object. Check out the NSF discovery feature to learn more. Credit: Zina Deretsky, National Science Foundation |
Date | |
Source | Gravitational Lensing |
Author | National Science Foundation |
Licensing
editPublic domainPublic domainfalsefalse |
This image is a work of a National Science Foundation employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. |
This image was originally posted to Flickr by National Science Foundation at https://flickr.com/photos/37157086@N02/9822270605. It was reviewed on 19 January 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the United States Government Work. |
19 January 2018
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current | 14:06, 19 January 2018 | 1,907 × 1,200 (314 KB) | Artix Kreiger 2 (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Unique ID of original document | uuid:5D20892493BFDB11914A8590D31508C8 |
Software used | Adobe Photoshop CS5 Windows |
IIM version | 2 |