NASA’s Cassini spacecraft has discovered liquid hydrocarbons on Saturn’s Moon Titan

Q.  Cassini spacecraft from NASA has discovered liquid hydrocarbons on which moon?
- Published on 12 Aug 16

a. Io
b. Ganymede
c. Europa
d. Titan

ANSWER: Titan
 
NASA’s Cassini spacecraft has discovered steep sided canyons 100s of meters deep on Saturn’s moon Titan that are flooded with liquid hydrocarbons
  • This presents first evidence of liquid filled channels on Titan
  • It also represented the first observation of the deep canyons on Titan
  • Observations show that channels including the Vid Flumina are narrow. less than a km wide and with steep slopes at 40 degrees and measured 240 to 570 m from top to bottom
  • Branching channels appear in radar images much like Titan’s methane rich seas
  • Channels might also be filled with liquid but direct detection has not been made till now; earth based examples of canyon caring processes are found along Arizona’s Colorado river

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