Carl Sagan

Carl Sagan

was an American astronomer, astrophysicist, cosmologist, author, science popularizer, and science communicator in the space and natural sciences
We are the product of 4.5 billion years of fortuitous, slow biological evolution. There is no reason to think that the evolutionary process has stopped. Man is a transitional animal. He is not the climax of creation.More Carl Sagan quotes [03/29/2018 05:03:36]
If there is life, then I believe we should do nothing to disturb that life.
Mars then, belongs to the Martians, even if they are microbes.More Carl Sagan quotes [03/29/2018 05:03:36]
Some 5 billion years from now, there will be a last perfect day on Earth... then the sun will begin to die, life will be extinguished, the oceans will boil and evaporate away.More Carl Sagan quotes [03/29/2018 05:03:36]
We live in an in-between universe where things change all right...but according to patterns, rules, or as we call them, laws of nature.More Carl Sagan quotes [03/29/2018 05:03:36]
There is today-in a time when old beliefs are withering-a kind of philosophical hunger, a need to know who we are and how we got here. It is an on-going search, often unconscious, for a cosmic perspective for humanityMore Carl Sagan quotes [03/29/2018 05:03:36]

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