Astronomy Picture of the Day
    


Riverbeds and Lakebeds Discovered on Saturn's Titan
<< Yesterday 23.01.2005 Tomorrow >>
Riverbeds and Lakebeds Discovered on Saturn's Titan
Credit & Copyright: ESA, NASA, Descent Imager/Spectral Radiometer Team (LPL)
Explanation: Methane rain, evaporating lakes, flowing rivers, and water ice-volcanoes all likely exist on Saturn's moon Titan, according to preliminary analyses of recent images taken by the successful Huygen's lander. A snaking and branching riverbed is identified with the dark channel near the top of the above image, while a dark lakebed is identified across the image bottom. Both the riverbed and lakebed were thought to be dry at the time the image was taken but contained a flowing liquid - likely methane - in the recent past. Titan's surface was found to appear strangely similar to Earth even though it is so cold that methane flows and water freezes into rock-hard ice. Although the Huygen's probe has now run out of power, the images it returned will likely be studied for decades to come. The Cassini mothership is scheduled to continue to orbit Saturn and return images for several more years.

January
February
March
April
May
June
July
August
September
October
November
December
 < January 2005  >
Mo Tu We Th Fr Sa Su





12
3456789
10111213141516
17181920212223
24252627282930
31





Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Titan - Saturn
Publications with words: Titan - Saturn
See also:
All publications on this topic >>