Astrophysics Quotes

Quotes tagged as "astrophysics" (showing 1-30 of 83)
Neil deGrasse Tyson
“In 2002, having spent more than three years in one residence for the first time in my life, I got called for jury duty. I show up on time, ready to serve. When we get to the voir dire, the lawyer says to me, “I see you’re an astrophysicist. What’s that?” I answer, “Astrophysics is the laws of physics, applied to the universe—the Big Bang, black holes, that sort of thing.” Then he asks, “What do you teach at Princeton?” and I say, “I teach a class on the evaluation of evidence and the relative unreliability of eyewitness testimony.” Five minutes later, I’m on the street.

A few years later, jury duty again. The judge states that the defendant is charged with possession of 1,700 milligrams of cocaine. It was found on his body, he was arrested, and he is now on trial. This time, after the Q&A is over, the judge asks us whether there are any questions we’d like to ask the court, and I say, “Yes, Your Honor. Why did you say he was in possession of 1,700 milligrams of cocaine? That equals 1.7 grams. The ‘thousand’ cancels with the ‘milli-’ and you get 1.7 grams, which is less than the weight of a dime.” Again I’m out on the street.”
Neil deGrasse Tyson, Space Chronicles: Facing the Ultimate Frontier

Neil deGrasse Tyson
“We are stardust brought to life, then empowered by the universe to figure itself out—and we have only just begun.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

“The arrow of time obscures memory of both past and future circumstance with innumerable fallacies, the least trivial of which is perception.”
Ashim Shanker, Only the Deplorable

Hugh Ross
“Appeals to imagined forces and phenomena have been the basis for all the cosmological models proposed to avoid the big bang implications about God. The disproof of these models and the ongoing appeal by nontheists to more and more bizarre unknowns and unknowables seem to reflect the growing strength of the case for theism.”
Hugh Ross, The Creator and the Cosmos

Neil deGrasse Tyson
“When Newton breached this philosophical barrier by rendering all motion comprehensible and predictable, some theologians criticized him for leaving nothing for the Creator to do.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Dark energy is a mysterious pressure in the vacuum of space that acts in the opposite direction of gravity, forcing the universe to expand faster than it otherwise would.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“There’s no doubt about it: more varieties of carbon-based molecules exist than all other kinds of molecules combined.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Nonetheless, they remind us that ignorance is the natural state of mind for a research scientist.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Dark matter is a mysterious substance that has gravity but does not interact with light in any known way.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

“Far from disproving the existence of God, astronomers may be finding more circumstantial evidence that God exists.”
Robert Jastrow

Neil deGrasse Tyson
“We have one collective hope: the Earth And yet, uncounted people remain hopeless, famine and calamity abound
Sufferers hurl themselves into the arms of war;
people kill and get killed in the name of someone else’s concept of God
Do we admit that our thoughts & behaviors spring from a belief that the world revolves around us? Each fabricated conflict, self-murdering bomb, vanished airplane, every fictionalized dictator, biased or partisan, and wayward son, are part of the curtains of society’s racial, ethnic, religious, national, and cultural conflicts, and you find the human ego turning the knobs and pulling the levers
When I track the orbits of asteroids, comets, and planets, each one a pirouetting dancer in a cosmic ballet, choreographed by the forces of gravity,
I see beyond the plight of humans
I see a universe ever-expanding,
with its galaxies embedded within the ever-stretching four-dimensional fabric of space and time
However big our world is, our hearts, our minds, our outsize atlases, the universe is even bigger
There are more stars in the universe than grains of sand on the world’s beaches, more stars in the universe than seconds of time that have passed since Earth formed,
more stars than words & sounds ever uttered by all humans who have ever lived
The day we cease the exploration of the cosmos is the day we threaten the continuing of our species
In that bleak world, arms-bearing, resource-hungry people & nations would be prone to act on their low-contracted prejudices, and would have seen the last gasp of human enlightenment
Until the rise of a visionary new culture that once again embraces the cosmic perspective;
a perspective in which we are one, fitting neither above nor below, but within”
Neil deGrasse Tyson

Neil deGrasse Tyson
“Mount Everest is about as tall as a mountain on Earth can grow before the lower rock layers succumb to their own plasticity under the mountain’s weight.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“There's a variation of the ever popular multiverse idea in which the multiple universes that comprise it are not separate universes entirely, but isolated, non-interacting pockets of space within one continuous fabric of space time - like multiple ships at sea, far enough away from one another so that their circular horizons do not intersect. As far as any one ship is concerned (without further data), it's the only ship on the ocean, yet they all share the same body of water.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Quarks are quirky beasts. Unlike protons, each with an electric charge of +1, and electrons, with a charge of –1, quarks have fractional charges that come in thirds.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“A modern example of this stunning knowledge of nature that Einstein has gifted us, comes from 2016, when gravitational waves were discovered by a specially designed observatory tuned for just this purpose.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Hugh Ross
“If the universe is created, then there must be reality beyond the universe...The Creator is the source of life and establishes its meaning and purpose....To study the origin and development of the universe is, in a sense, to investigate the basis for any meaning and purpose to life. Cosmology has deep theological and philosophical ramifications.”
Hugh Ross, The Creator and the Cosmos

Neil deGrasse Tyson
“The one we call Earth formed in a kind of Goldilocks zone around the Sun, where oceans remain largely in liquid form.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“These same oxygen atoms, normally found in pairs (O2), also combined in threes to form ozone (O3) in the upper atmosphere, which serves as a shield that protects Earth’s surface from most of the Sun’s molecule-hostile ultraviolet photons.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“This general flattening of objects that rotate is why Earth’s pole-to-pole diameter is smaller than its diameter at the equator. Not by much: three-tenths of one percent—about twenty-six miles.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“During the quark–lepton era the universe was dense enough for the average separation between unattached quarks to rival the separation between attached quarks.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Using freshman level calculus you can show that the one and only shape that has the smallest surface area for an enclosed volume is a perfect sphere. In fact, billions of dollars could be saved annually on packaging materials if all shipping boxes and all packages of food in the supermarket were spheres. For example, the contents of a super-jumbo box of Cheerios would fit easily into a spherical carton with a four-and-half inch radius. But practical matters prevail - nobody wants to chase packaged food down the aisle after it rolls off the shelves.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Earth has also tidally locked the Moon, leaving it with identical periods of rotation on its axis and revolution around Earth. Wherever and whenever this happens, the locked moon shows only one face to its host planet.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Spheres are indeed fertile theoretical tools that help us gain insight into all manner of astrophysical problems. But one should not be a sphere-zealot. I am reminded of the half-serious joke about how to increase milk production on a farm: An expert in animal husbandry might say, "Consider the role of the cow's diet..." An engineer might say, "Consider the design of the milking machines..." But it's the astrophysicist who says, "Consider a spherical cow...”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Filling out the entire electromagnetic spectrum, in order of low-energy and low-frequency to high-energy and high-frequency, we have: radio waves, micro waves, ROYGBIV, ultra violet, x rays, and gamma rays.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Newton's laws specifically state that, while the gravity of a planet gets weaker and weaker the farthest from it you travel, there is no distance where the force of gravity reaches zero. The planet Jupiter, with its mighty gravitational field, bats out of harm's way many comets that would otherwise wreak havoc on the inner solar system. Jupiter acts as a gravitational shield for Earth, a burly big brother, allowing long (hundred-million-year) stretches of relative peace and quiet on Earth. Without Jupiter's protection, complex life would have a hard time becoming interestingly complex, always living at risk of extinction from a devastating impact.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“Had Earth been much closer to the Sun, the oceans would have evaporated. Had Earth been much farther away, the oceans would have frozen. In either case, life as we know it would not have evolved.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Neil deGrasse Tyson
“These early, single-celled organisms unwittingly transformed Earth’s carbon dioxide-rich atmosphere into one with sufficient oxygen to allow aerobic organisms to emerge and dominate the oceans and land.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

Hugh Ross
“Proof of the beginning of time probably ranks as the most theologically significant theorem. This great significance arises from the theorem establishing that the universe must be caused by some Entity capable of creating the universe entirely independent of space and time. Such an entity matches the attributes of the God of the Bible but is contradicted by the gods of the eastern (and indeed all other) religions who create within space and time.”
Hugh Ross, The Creator and the Cosmos

“A black hole not only holds all the colors of the universe, it also contains the future of mankind within it's grasp.”
Anthony T. Hincks

Neil deGrasse Tyson
“From that day on, I began to think of people not as the masters of space and time but as participants in a great cosmic chain of being, with a direct genetic link across species both living and extinct, extending back nearly four billion years to the earliest single-celled organisms on Earth.”
Neil deGrasse Tyson, Astrophysics for People in a Hurry

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