NASA has been in and out of low-Earth orbit since 1962. That is not a space frontier.As far as for right now, well, what is NASA going do next? Well, President Obama says we are going to Mars. Most people don't know he actually said that, but he said we're going to Mars. OK, Mr. President, when? 'Well, sometime in the 2030s.' Will you be in charge then? 'No.' He's going to be on a beach in Hawaii in 2035, and it's going to be carried out by some president to be named later. And that concerns me deeply. We live in a time when a president makes some kind of promise, but does not have the political continuity set in place for the future to make sure it follows through. President Kennedy said we will go to the moon within this decade, because he would have [still] been president, had he lived. It's something he could have shepherded. Imagine if he had said, 'we'll go to the moon sometime before the century is out.'