It's strictly coincidental that Pluto of course was named for the god of the underworld and we're describing these Halloween moons

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.

It'll be the fastest spacecraft ever to Jupiter...13 months after launch. We pass the Moon in just nine hours.

Naming celestial objects is usually done by astronomers and professionals. Other people who are interested in space never get the opportunity to do that kind of thing.

We're in the space exploration business, and the outer solar system is a wild, wooly place. We haven't explored it very well.

There are lots of really interesting little planets out there in the Kuiper Belt, but Pluto's the only one that's got all the cool attributes.

The big lesson of planetary science is when you do a first reconnaissance of a new kind of object, you should expect the unexpected.

A river is a river, independent of whether there are other rivers nearby. In science, we call things what they are based on their attributes, not what they're next to.

Of course Pluto is a planet: It's massive enough to have its shape controlled by gravity rather than material strength, which is the hallmark of planethood.

Competition-driven innovation and price pressure that commercial practices foster can only make human spaceflight ever more common and U.S. leadership in this domain ever clearer.

If you're not creating, you're disintegrating.

Moreover, in order to understand any man one must be deliberate and careful to avoid forming prejudices and mistaken ideas, which are very difficult to correct and get over afterwards.

Elizabeth nodded, looking too dejected to do much more. “Can she just go back to him?” she pleaded. “He’s dying. She’s dying. They can’t have a life together, but at least they could have th

The sibilant s is the most difficult sound to correct

My husband is someone who's in the real world. It's a big help that I don't have both feet in Hollywood

Today is Earth Day. Environmentalists spent the day drawing attention to the Earth, while the Earth just spent the day checking Facebook to see which planets wished it a happy Earth Day.

I think today if we forbade our illiterate children to touch the wonderful things of our literature, perhaps they might steal them and find secret joy.

Personal integrity implies such trustworthiness and incorruptibility that we are incapable of being false to a trust or covenant.

I was a very curious person because of my parents. They encouraged me to be as curious about as many things as I wanted.

If you eliminate the names of Lincoln, Washington, Roosevelt, Jackson and Wilson, both conventions would get out three days earlier.