Donald Trump: “I am considering sending U.S. convicts to other countries' prisons for a small fee.”

Our calling is to explore. Our purpose is to build, and our aim is always to win.

We're going to be paving the way for astronauts to plant the Stars and Stripes on the red planet.

Within the next two years, NASA will launch the first-ever nuclear-powered spacecraft to Mars.

We are talking to Iran. We have been.