- Nov 28, 2001
- 22,205
- 44
- 91
I love this kind of thing!!
http://www.nasa.gov/mission_pages/cassini/multimedia/cassini20091217.html
What you are seeing here is sunlight reflecting off a lake in the northern hemisphere of Titan at a very sharp angle. The picture was taken in infrared because the haze in the atmosphere blocks most other wavelengths. Now Casini had pretty much already shown that there were lakes on Titan via radar mapping of its surface. They found lots of perfectly flat areas in the radar data that screamed lakes but until this evidence they couldn't really be sure. Here are the radar images:
http://apod.nasa.gov/apod/ap060731.html
Now these would be methane lakes not water. After all Titan's surface temp is -179 C!
http://www.nasa.gov/mission_pages/cassini/multimedia/cassini20091217.html
What you are seeing here is sunlight reflecting off a lake in the northern hemisphere of Titan at a very sharp angle. The picture was taken in infrared because the haze in the atmosphere blocks most other wavelengths. Now Casini had pretty much already shown that there were lakes on Titan via radar mapping of its surface. They found lots of perfectly flat areas in the radar data that screamed lakes but until this evidence they couldn't really be sure. Here are the radar images:
http://apod.nasa.gov/apod/ap060731.html
Now these would be methane lakes not water. After all Titan's surface temp is -179 C!