This is what the Mars Science Laboratory (MSL) represents. Experimental, explorational science. Learning about Mars as a new world. Discovering new things that will tell us about the history of our solar system, help reveal the secrets of life, and continue blazing the trail that may someday be traveled by the rest of us.

Space is a laboratory, an experiment in all forms of all things, an infinity of possibilities, properties, and places that cry out for investigation and exploration.

By reigniting the exploration role of our government Lewises and Clarks within and enabled by the infrastructure and economic drive of commercial space and the people themselves, this nation can rise to heights unimaginable.

The exploration of space: Be it by humans or robots, based on the best choice for the mission and the most efficient means to return the data and science sought. Most of the time, this will mean we send robots due to cost and danger. But sometimes, we will need the irreplaceable judgment and descriptive abilities of a person on the spot.

Forget the historic nature of his election having to do with skin color - Obama has an opportunity offered to few presidents: the chance to set the course of the nation for decades, if not generations, to come. Who knows: perhaps in the near future, our grandchildren will spend money with Obama's face on it.

The truth is that the free movement of goods, people, and money that developed under British hegemony between 1870 and 1913 - the first episode of globalization - was made possible, in large part, by military might rather than market forces.

I did a terrible television pilot that was so badly written and dumb that it became a turning point for me and I decided that I would never accept a job just because I needed the money.

I had had some successes in the '90s, always made money, but the truth was I was like a man pushing a boulder up a hill. A huge, heavy, difficult boulder made up of some career mistakes, projects that didn't meet expectations, and twenty years of being a known quantity.