We'll be like kids in a candy shop.

I ... was not comfortable with launching without backup power. I've been working on this for 17 years ... Two or three days doesn't mean a hill of beans.

We really expect the mission to be transformational. This is the capstone of the original visits to the planets. It takes us 4 billion miles away and 4 billion years back in time.

This is the capstone of the initial reconnaissance of the planets, the first mission to the last planet.

This is the capstone of the missions to the planets that NASA has led since the 1960s.

It used to be said that Pluto is a misfit. But now we know Earth is the misfit. This is the most populous class of planet in our solar system and we have never sent a mission to this class.