Quotes About Black holes

There are no black holes in the sense of regimes from which light can't escape to infinity.

Finding the first seed black holes could help reveal how the relation between black holes and their host galaxies evolved over time.

General relativity predicts that time ends inside black holes because the gravitational collapse squeezes matter to infinite density.

Black holes can bang against space-time as mallets on a drum and have a very characteristic song.

Einstein got most of the things right about black holes. I'm not an expert, I must admit.

It's hard for me to speculate about what motivates somebody like Stephen Hawking or Elon Musk to talk so extensively about AI. I'd have to guess that talking about black holes gets boring after awhile - it's a slowly developing topic.

But while only a tiny fraction of the mass of the universe appears to be in black holes, they contain a huge amount of entropy. A single supermassive black hole, a million times the mass of the Sun, has an entropy according to the Bekenstein-Hawking formula of 1090. That's a hundred times larger than all of the nongravitational entropy in all the matter and radiation in the observable universe.242

Things changed with the discovery of neutron stars and black holes - objects with gravitational fields so intense that dramatic space and time-warping effects occur.

thus, in a sense, we are all doomed. even if we stay away from black holes

The size of the effect that we measured from the first event, the merging of two black holes, the actual size of the signal was about one thousandth the size of a proton, what it did to our apparatus.

Only black holes of very low mass would emit a significant amount of radiation.

MACHOs (for MAssive Compact Halo Objects—really just another name for black holes, brown dwarfs and other very dim stars).

Observing gravitational waves would yield an enormous amount of information about the phenomena of strong-field gravity. If we could detect black holes collide, that would be amazing.

My work indicated that if we consider smaller and smaller black holes, at some stage, the properties of black holes become indistinguishable from those of elementary particles.

Los agujeros negros en el centro de las dos galaxias ejecutarán una danza de la muerte antes de colisionar y fusionarse finalmente.

Quantum theory says that there must be quantum corrections to pure blackness, so black holes are actually gray. (And they emit a faint radiation called Hawking radiation.)

Extraordinary emblems of math's ability to illuminate the dark corners of the cosmos, black holes have become the cynosures of modern physics.

Black holes don't just tell us about how black holes store information. Black holes inform us about information storage in any context.

E]ven laws of Nature are not absolutely certain. There may be new circumstances never before examined – inside black holes, say, or within the electron, or close to the speed of light – where even our vaunted laws of Nature break down and, however valid they may be in ordinary circumstances, need correction.

Black holes may be apertures to elsewhen. Were we to plunge down a black hole, we would re-emerge, it is conjectured, in a different part of the universe and in another epoch in time . . . Black holes may be entrances to Wonderlands. But are there Alices or white rabbits?

You are exporting disorder [in the form of heat into the Universe] now as you read this book. You are hastening the demise of everything that exists, bringing forward by your very existence the arrival of time known as the heat death, when all stars have died, all black holes have evaporated away and the entirety of creation is a uniform bath of photons incapable of storing a single bit of information about the glorious adolescence of our wonderful Universe.

With the star up above and the blackness of space, I can't avoid feeling awe. How could we, Homo sapiens, an insignificant species on an insignificant planet adrift in a middleweight galaxy, have managed to predict how space and time would tremble after two black holes collided in the vastness of the universe a billion light-years away? We knew what that wave should sound like before it got here. And, courtesy of calculus, computers, and Einstein, we were right.

But many of the conceptual constructs that we employ in scientific and in philosophical thought concern objects such as black holes and quarks in physics, and God, spirits, and souls in metaphysics. These are objects about which it is of fundamental importance to ask about their existence in reality.

Black holes are very exotic objects. Technically, a black hole puts a huge amount of mass inside of zero volume. So our understanding of the center of black holes doesn't make sense, which is a big clue to physicists that we don't have our physics quite right.