Being a scientist and staring immensity and eternity in the face every day is as grand and inspiring as it gets.

We have at last glimpsed the surface of the fabled world, Titan, Saturn's largest moon and the greatest single expanse of unexplored territory remaining in the Solar System today.

Cassini is different -- it's a mission of enormous scope and is being conducted in grand style. It is much more sophisticated than Voyager, ... I can't say it's got that flavor of romance, though. Voyager was very romantic. Cassini is spectacular.

While I was there, Voyager flew by Saturn. I got involved with a person who was a member of the imaging team and started working on data from Saturn. With all that data coming in, the imaging team didn't have enough hands or scientists to work on all of it.

There is a powerful recognition that stirs within us when we see our little blue ocean planet in the skies of other worlds. In an instant we can see how small, fragile, and alone we all really are.

The same spiritual fulfillment that people find in religion can be found in science by coming to know, if you will, the mind of God.

For planetary explorers like us, there is little that can compare to the sighting of activity on another solar system body. This has been a heart-stopper, and surely one of our most thrilling results.