30 de outubro de 2012

i ♥ Nasa!

"We were hunters and foragers. The frontier was everywhere. We were bounded only by the earth, and the ocean, and the sky. The open roads still, soft and cause. Our little  terraqueous globe is the madhouse of those hundred, thousand, millions of worlds. We who can not even put our planetary home in order, riven with rivalries and hatred, ARE WE TO VENTURE OUT INTO SPACE ? By the time we are ready to settle even the nearest planetary systems, we will have changed. The simple passage of so many generations will have changed us. The necessity will have changed us. We're.. an adaptable species. It'll not be we who reach Alpha Centauri and the other new by stars, it'll be a species very like us, but with more of our strengths and fewer of our weaknesses. More confident, farseeing, capable and prudent. For all our failings, despite our limitations and fallibilities, we humans are capable of greatness. What new wonders undreamed of in our time will we have rot in another generation and another. How far will have our nomadic species have wondered, by the end of the next century and the next millennium. Our remote descendants safely arrayed on many worlds in through the solar system and beyond, will be unified. By their common  heritage, by their regard for their home planet, and by the knowledge that whatever other life may be, the only humans in all this universe, come from earth. They will gaze up and stream to find the blue dot in thier skies. They will marvel that how vulnerable the repository of war potential once was. How pairless our infancy. How humble our beginnings. How many rivers we had to cross before we found our way." - Carl Sagan

"As children we fear the dark. The unknown troubles us. Anything might be out there. Ironically it’s our fate to live in the dark. Head out from the earth in any direction you choose, and after an initial flash of blue, you are surrounded by blackness; punctuated only here and there by the faint distant stars. Even after we're grown the darkness retains its power to frighten us, and so there are those who say we should not enquire too closely, into who else might be living in that darkness. Better not to know, they say.
There are four hundred billion stars in the Milky Way galaxy. Of this immense multitude, could it be that our humdrum sun is the only one with an inhabited planet? Maybe, maybe the origin of life or intelligence is exceedingly improbable. Or maybe civilizations arise all the time but wipe themselves out as soon as they are able. Or, here and there peppered across space. Maybe there are worlds something like our own. On which other beings gaze up and wonder as we do, about who else lives in the dark.
Life is a comparative rarity. You can survey dozens of worlds and find that in only one of them does life arise, and evolve, and persist. If we humans ever go to those worlds, then it will be because a nation or a consortium of them, believes it to be of its advantage, or to the advantage of the human species. In our time we have crossed the solar system and sent four ships to the stars. But we continue to search for inhabitants. LIFE LOOKS FOR LIF
E -Carl Sagan

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