Planetary Diversity Quotes

When we contemplate the whole globe as one great dewdrop, striped and dotted with continents and islands, flying through space with other stars all singing and shining together as one, the whole universe appears as an infinite storm of beauty.

Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space.

Most certainly, some planets are not inhabited, but others are, and among these there must exist life under all conditions and phases of development.

Water-based life is very much an Earth-centric view, and we can push the envelope on that here in our own solar system. We have the methane seas of Titan.

The world, when you look at it, it just can't be random. I mean, it's so different than the vast emptiness that is everything else, and even all the other planets we've seen, at least in our solar system, none of them even remotely resemble the precious life-giving nature of our own planet.

Earth is a stunningly lovely planet for so many reasons. Among these is the wondrous presence of curious, artful, inventive humanity.

Wherever you are on Earth, there is more life present than in the rest of the known universe.

The sooner we become a multi-planet species, the safer the species is, and the stronger the guarantee that we're going to continue to evolve.

Humans need to be a multiplanet species.

I agree, along with Carl Sagan, that we should eventually become a two planet species. Life is too precious to place on a single planet.

If our solar system is not unusual, then there are so many planets in the universe that, for example, they outnumber the sum of all sounds and words ever uttered by every human who has ever lived. To declare that Earth must be the only planet with life in the universe would be inexcusably bigheaded of us.

Discovering that our solar system has many more planets than we ever expected, and that most of them are ice dwarfs rather than like Earth and the other rocky terrestrials, is just another step in the revolution in viewpoint that removed the Earth from the center of the physical universe and makes Earth all the more special.

Going to Mars would evolve humankind into a two-planet species.

The Earth is just one place of many that we could hang our hats.

There is a clarity, a brilliance to space that simply doesn't exist on earth, even on a cloudless summer's day in the Rockies, and nowhere else can you realize so fully the majesty of our Earth and be so awed at the thought that it's only one of untold thousands of planets.

But the goal isn't just scientific exploration, ... it's also about extending the range of human habitat out from Earth into the solar system as we go forward in time... In the long run a single-planet species will not survive.

Titan is the one place in our solar system whose geographical and atmospheric diversity and complexity are rivaled only by the Earth's. It's very Earth-like, but it's also very different, which means we have a lot to learn as well as a prayer of understanding what we find.