File:A Tale of Two Worlds - Silicate Versus Carbon Planets.jpg
![File:A Tale of Two Worlds - Silicate Versus Carbon Planets.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/2/25/A_Tale_of_Two_Worlds_-_Silicate_Versus_Carbon_Planets.jpg/800px-A_Tale_of_Two_Worlds_-_Silicate_Versus_Carbon_Planets.jpg?20131026164413)
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Summary
editDescriptionA Tale of Two Worlds - Silicate Versus Carbon Planets.jpg |
English: This artist's concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface. The one on the right is rich in carbon -- and dry. Chances are low that life as we know it, which requires liquid water, would thrive under such barren conditions.
New theoretical findings show that planetary systems with carbon-rich stars would host waterless rocky planets. On Earth, it is believed that icy asteroids and comets are the main suppliers of Earth’s ocean. But, in star systems rich in carbon, the carbon would snag up oxygen to make carbon monoxide, leaving little oxygen to make water ice. In those systems, the asteroids and comets would be dry. The most extreme carbon-rich stars, with much more carbon than our sun, are thought to create carbon-based planets, as depicted in this illustration. Those planets would lack oceans due to a lack of icy asteroids and comets serving as water reservoirs. |
Date | |
Source | http://www.nasa.gov/centers/jpl/multimedia/pia17550.html#.Umvw-uig5w0 |
Author | NASA/JPL-Caltech |
Licensing
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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current | 16:44, 26 October 2013 | ![]() | 5,333 × 3,000 (1.65 MB) | Stas1995 (talk | contribs) | User created page with UploadWizard |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 17:55, 3 October 2013 |
Color space | sRGB |
Date and time of digitizing | 10:44, 1 October 2013 |
Date metadata was last modified | 10:55, 3 October 2013 |
Unique ID of original document | xmp.did:04801174072068118083DF572FEEC6C9 |