Ethane clouds on Titan. Cassini will fly by Titan again on September 23. Right now, it is picking up infrared images of Titan's northern hemisphere which can be seen at this link. The images show the reflection of sunlight on Titan's atmosphere. The image appears in false color so that the highest reflection appears as a reddish hue. The vast ethane cloud can be seen in all images as a reddish band just north of 50 degrees latitude.