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.

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.

Saturn is the most photogenic planet in the solar system.

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.

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.

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

Let’s teach our children from a very young age about the story of the universe and its incredible richness and beauty. It is already so much more glorious and awesome - and even comforting - than anything offered by any scripture or God concept I know.