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Exlpore more Astronomy quotes
"This is very similar to astronomy where different magnitudes are assigned to the brightness of an astronomical object, depending on the range of wavelengths being measured."
"This sight... is by far the noblest astronomy affords."
"Stars are fires that burn for thousands of years. Some of them burn slow and long, like red dwarfs. Others-blue giants-burn their fuel so fast they shine across great distances, and are easy to see. As they start to run out of fuel, they burn helium, grow even hotter, and explode in a supernova. Supernovas, they're brighter than the brightest galaxies. They die, but everyone watches them go."
"Did you say the stars were worlds, Tess?""Yes.""All like ours?""I don't know, but I think so. They sometimes seem to be like the apples on our stubbard-tree. Most of them splendid and sound - a few blighted.""Which do we live on - a splendid one or a blighted one?""A blighted one."
"Anything that had happened once on Earth should be expected millions of times elsewhere in the Universe, that was almost an article of faith among scientists."
"Until very recently, the heavenly bodies have been investigated only with reference to their position and their laws of motion, and a quarter of a century ago astronomy was little more than celestial topography."
"My amateur interest in astronomy brought out the term 'magnitude,' which is used for the brightness of a star."
"But when researchers at Bell Labs discovered that static tends to come from particular places in the sky, the whole field of radio astronomy opened up."
Explore more quotes by Carl Sagan
"Whatever the reason we first mustered the _Apollo_ program, however mired it was in Cold War nationalism and the instruments of death, the inescapable recognition of the unity and fragility of the Earth is its clear and luminous dividend, the unexpected final gift of _Apollo_. What began in deadly competition has helped us to see that global cooperation is the essential precondition for our survival.Travel is broadening. It's time to hit the road again."
"When all is said and done, the invention of writing must be reckoned not only as a brilliant innovation but as a surpassing good for humanity. And assuming that we survive long enough to use their inventions wisely, I believe the same will be said of the modern Thoths and Prometheuses who are today devisingcomputers and programs at the edge of machine intelligence."
"She had to fight against developing too combative a personality or becoming altogether a misanthrope. She suddenly caught herself. "Misanthrope" is someone who dislikes everybody, not just men.And they certainly had a word for someone who hates women: "misogynist." But the male lexicographers had somehow neglected to coin a word for the dislike of men. They were almost entirely men themselves, she thought, and had been unable to imagine a market for such a word."
"And despite the insignificance of the instant we have so far occupied in cosmic time, it is clear that what happens on and near Earth at the beginning of the second cosmic year will depend very much on the scientific wisdom and the distinctly human sensitivity of mankind."
"I don't think science is hard to teach because humans aren't ready for it, or because it arose only through a fluke, or because, by and large, we don't have the brainpower to grapple with it. Instead, the enormous zest for science that I see in first-graders and the lesson from the remnant hunter-gatherers both speak eloquently: A proclivity for science is embedded deeply within us, in all times, places, and cultures. It has been the means for our survival. It is our birthright. When, through indifference, inattention, incompetence, or fear of skepticism, we discourage children from science, we are disenfranchising them, taking from them the tools needed to manage their future."
"Adolf Hitler! Ken, it makes me furious. Forty million people die to defeat that megalomaniac, and he's the star of the first broadcast to another civilization? He's representing us. And them. It's that madman's dream come true."
"Personally, I would be delighted if there were a life after death, especially if it permitted me to continue to learn about this world and others, if it gave me a chance to discover how history turns out."
"Perhaps the depth of love can be calibrated by the number of different selves that are actively involved in a given relationship."
"In the vastness of space and the immensity of time, it is my joy to share a planet and an epoch with Annie. [Dedication to Sagan's wife, Ann Druyan, in Cosmos]"
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