Don's always had a dogged determination. When he sets his sights on doing something, you can be sure he's going to be able to achieve it.

This radar data is among the most telling evidence so far for a shoreline.

This is the area where liquid or a wet surface has most likelybeen present, now or in the recent past.

We've been looking for evidence of oceans or seas on Titan for some time. This radar data is among the most telling evidence so far for a shoreline.

Titan probably has episodic periods of rainfall or massive seepages of liquid from the ground.

This is the area where liquid or a wet surface has most likely been present, now or in the recent past. Titan probably has episodic periods of rainfall or massive seepages of liquid from the ground.