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sagan.bsky.social
In the Memory of Astronomer, Researcher, Educator, Communicator, Advocate and Activist who taught us importance of understanding Science. We miss you Carl. Tribute account.
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Books permit us to voyage through time, to tap the wisdom of our ancestors.

submitted 1 day ago • 5 comments

Hits hard as always! Are we too bamboozled to see the truth?

submitted 2 days ago • 18 comments

You're an interesting species. An interesting mix. You're capable of such beautiful dreams, and such horrible nightmares. You feel so lost, so cut off, so alone, only you're not. See, in all our searching, the only thing we've found that makes the emptiness bearable, is each other.

submitted 2 days ago • 5 comments

As always, a beautiful speech from Carl "Man in His Arrogance" by Carl Sagan

submitted 2 days ago • 48 comments

Carl Sagan on Religion and God! “We must not believe because we want it to be true.”

submitted 2 days ago • 30 comments

We can judge our progress by the courage of our questions and the depth of our answers, our willingness to embrace what is true rather than what feels good.

submitted 3 days ago • 1 comment

Latest image of the Sun taken today by NASA 🌞

submitted 3 days ago • 31 comments

Carl Sagan in 1986 on the problems with media and science literacy.

submitted 3 days ago • 116 comments

The universe is a pretty big place. If it's just us, seems like an awful waste of space.

submitted 4 days ago • 11 comments

It pays to keep an open mind, but not so open your brains fall out.

submitted 5 days ago • 3 comments

Imagination will often carry us to worlds that never were, but without it we go nowhere.

submitted 6 days ago • 6 comments

You cannot teach a man anything, you can only help him to find it within himself. Galileo Galilei

submitted 6 days ago • 1 comment

We are like butterflies who flutter for a day and think it is forever.

submitted 7 days ago • 5 comments

Sir Isaac Newton's 'Trinity College notebook' page written somewhere between 1661 and 1665, when he was an undergraduate at that same college.

submitted 7 days ago • 2 comments

Which of Carl Sagan's books do you want to read? #booksky

submitted 7 days ago • 66 comments

The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.

submitted 8 days ago • 14 comments

Quantum mechanics pioneers Niels Bohr and Max Planck photographed in front of a chalkboard, ca. 1930.

submitted 9 days ago • 4 comments

For small creatures such as we the vastness is bearable only through love.

submitted 9 days ago • 4 comments

Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. - Carl Sagan

submitted 9 days ago • 8 comments

Who is more humble? The scientist who looks at the universe with an open mind and accepts whatever the universe has to teach us, or somebody who says everything in this book must be considered the literal truth and never mind the fallibility of all the human beings involved?

submitted 10 days ago • 7 comments

If you think you understand quantum mechanics, you don't understand quantum mechanics. -Richard Feynman

submitted 10 days ago • 6 comments

We are, each of us, largerly responsible for what gets put into our brains, for what, as adults, we wind up caring for and knowing about. No longer at the mercy of the reptile brain, we can change ourselves.

submitted 10 days ago • 14 comments

Extraordinary claims require extraordinary evidence.

submitted 11 days ago • 7 comments

When you change the way you look at things, the things you look at change. - Max Planck (1858 - 1947)

submitted 11 days ago • 6 comments

Carl Sagan on why humanity needs a common goal & NASA should go to Mars

submitted 11 days ago • 28 comments

For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring.

submitted 12 days ago • 7 comments

"Creativity is intelligence having fun." - A. Einstein (1879 - 1955)

submitted 12 days ago • 1 comment

Pour one out for lost robots in the name of science ↖️ Cassini: broke apart diving into Saturn ↙️ Opportunity: died during planet wide dust storm ↗️ Mars helicopter: crashed during flight breaking propellers ↘️ Venera 7: crushed and melted on Venus

submitted 12 days ago • 10 comments

The Human DNA ~ Carl Sagan

submitted 12 days ago • 63 comments

If you wish to make an apple pie from scratch, you must first invent the universe.

submitted 13 days ago • 8 comments

Albert Einstein addressing the New Jersey State Assembly on April 10, 1934.

submitted 13 days ago • 0 comments

Carl Sagan speaking at MIT in 1987 on lowering our C02 emissions. Apply these words to any technological problem our world faces today and it holds up.

submitted 13 days ago • 89 comments

One glance at a book and you hear the voice of another person, perhaps someone dead for 1,000 years. To read is to voyage through time.

submitted 14 days ago • 12 comments

Plato is my friend — Aristotle is my friend — but my greatest friend is the truth. - Sir Isaac Newton

submitted 14 days ago • 8 comments

Science is not only compatible with spirituality; it is a profound source of spirituality.

submitted 15 days ago • 17 comments

Born on this day in 1686: Daniel Gabriel Fahrenheit Polish-German physicist and engineer who developed the Fahrenheit temperature scale and invented the mercury-in-glass thermometer.

submitted 15 days ago • 2 comments

submitted 15 days ago • 5 comments

The nitrogen in our DNA, the calcium in our teeth, the iron in our blood, the carbon in our apple pies were made in the interiors of collapsing stars. We are made of starstuff.

submitted 16 days ago • 21 comments

The dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance. Carl Sagan

submitted 16 days ago • 28 comments

The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand.

submitted 17 days ago • 14 comments

Every one of us is, in the cosmic perspective, precious. If a human disagrees with you, let him live. In a hundred billion galaxies, you will not find another.

submitted 17 days ago • 10 comments

submitted 17 days ago • 12 comments

Somewhere, something incredible is waiting to be known.

submitted 18 days ago • 161 comments

Schrödinger equation: iħ ∂Ψ/∂t = [−(ħ²/2m) ∇² + V] Ψ

submitted 18 days ago • 3 comments

Carl Sagan: Goal For Human Species

submitted 19 days ago • 18 comments

Three Titans of the Quantum Mechanics.

submitted 19 days ago • 3 comments

Albert Einstein, left, and Edwin Hubble, second from left, at the Mount Wilson Observatory, ca. 1931.

submitted 20 days ago • 5 comments