Ever since the environmental movement was sparked by…

“Planetary exploration satisfies our inclination for great enterprises and wanderings and quests that has been with us since our days as hunters and gatherers…

— Carl Sagan

In any 'big science' enterprise, like planetary exploration, where you must work in big teams of similarly driven people, it is important also to…

— Carolyn Porco

You cannot study other planets without referring to Earth and without applying the techniques and the insights of Earth science. And you cannot really…

— David Grinspoon

New Horizons isn't just visiting Pluto; it's visiting this entire region. Whatever it finds, this will be a signal moment for planetary exploration -…

— Alan Stern

“...One cannot help but consider the future- what will it be like when all the wild places of the earth have been taken over…

— Christopher Daniel Mechling

“On its first over was the famous picture of Earth taken from space; its subtitle was "Access to Tools." The underlying philosophy was that…

— Walter Isaacson

You stop planetary exploration, those people who do that extraordinary work are going to have to go do something else.

— Bill Nye

A friend of mine once sent me a post card with a picture of the entire planet Earth taken from space. On the back…

— Steven Wright

Once a photograph of the Earth, taken from outside, is available, once the sheer isolation of the Earth becomes known, a new idea as…

— Fred Hoyle

Once a photograph of the Earth, taken from outside, is available, we shall, in an emotional sense, acquire an additional dimension...

— Fred Hoyle

We have endorsements of our plan from key leaders within the environmental movement. That doesn't mean that it includes the whole environmental movement.

— Rachel Notley

The environmental movement, like all political processes, reacts best to disasters. But these are very slow, very gradual disasters in the making.

— Ted Danson

Why is Earth Day, today, also Lenin's birthday? Coincidence? Or does it signal the true intent of the national and worldwide environmental movement?

— Alan Caruba

What we know is that the environmental movement had a series of dazzling victories in the late '60s and in the '70s where the…

— Naomi Klein

I think the environmental movement is the biggest people's movement in the world. Unfortunately, our governments and corporations haven't responded accordingly to protect our…

— Leonardo DiCaprio