Human technology has made it to Mars. We are transmitting gorgeous pictures from it. Yet we have not explored our own planet. Two-thirds of it is covered with oceans that are still mysterious places.

Two-thirds of the Earth's surface is covered with water. The other third is covered with auditors from headquarters.

Our oceans cover two-thirds of what my grandfather called our water planet, and the part of the ocean that falls under the jurisdiction of the United States covers an area larger than the country itself.

I think I have the best job in the world. Seventy-one percent of the planet is covered by water, we've explored less than five percent of the ocean, and there are so many fabulous discoveries that have yet to be made.

All of my walls are covered with framed pictures of my friends.

We here on Earth have long held a fascination with the planet Mars.