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.

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.

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

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.

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.

Being afraid wouldn't find justice for the family---this boy seemed to understand that.

Freedom and love go together. Love is not a reaction. To love is not to ask anything in return, not even to feel that you are giving something, and it is only such love that can know freedom.

Touch a day you will never see.

GUNPOWDER, n. An agency employed by civilized nations for the settlement of disputes which might become troublesome if left unadjusted.

If your addiction lingers, ask yourself if you really want to release it, because in your heart you do not.

It is difficult in life to be good, and difficult in art to portray goodness. Perhaps we don't know much about goodness.

Beyond this vale of tears there is a life above. unmeasured by the flight of years; and all that life is love.

Integrity, respect, compassion, and fairness become obstacles to people who think winning is everything

I am basically very private, and I'm really nervous about doing publicity.

There is no question we have an access stock.