File:PIA23172-SaturnMoon-Titan-RimmedLakes-ArtistConcept-20190906.jpg
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[編輯]描述PIA23172-SaturnMoon-Titan-RimmedLakes-ArtistConcept-20190906.jpg |
English: PIA23172: Titan's Rimmed Lakes (Artist's Concept)
https://photojournal.jpl.nasa.gov/catalog/PIA23172 This artist's concept of a lake at the north pole of Saturn's moon Titan illustrates raised rims and rampartlike features such as those seen by NASA's Cassini spacecraft around the moon's Winnipeg Lacus. New research using Cassini radar data and modeling proposes that lake basins like these are likely explosion craters, which could have formed when liquid molecular nitrogen deposits within the crust warmed and quickly turned to vapor, blowing holes in the moon's crust. This would have happened during a warming event (or events) that occurred in a colder, nitrogen-dominated period in Titan's past. The new research may provide evidence of these cold periods in Titan's past, followed by a relative warming to conditions like those of today. Although Titan is frigid compared to Earth, methane in the atmosphere provides a greenhouse effect that warms the moon's surface. The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado. For more information about the Cassini-Huygens mission visit https://saturn.jpl.nasa.gov and https://www.nasa.gov/cassini. The Cassini imaging team homepage is at http://ciclops.org. |
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來源 | https://photojournal.jpl.nasa.gov/jpeg/PIA23172.jpg |
作者 | NASA/JPL-Caltech |
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[編輯]Public domainPublic domainfalsefalse |
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本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ![]() |
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目前 | 2019年9月7日 (六) 14:43 | ![]() | 3,840 × 2,160(772 KB) | Drbogdan(對話 | 貢獻) | User created page with UploadWizard |
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