Quotes About Astrophysics

what moves the planets and stars is the distortion of space and time." Of

The core of a neutron star is so dense that a single spoonful of matter from it would weigh 200 billion pounds.

It appears that the universe may not only be filled with dark matter, but with dark energy.

WIMPs (for Weakly Interacting Massive Particles, which is to say specks of invisible matter left over from the Big

Oppenheimer's work with Snyder is, in retrospect, remarkably complete and an accurate mathematical description of the collapse of a black hole

We've known for a long time that the universe is expanding. But about 15 years ago, my colleagues and I discovered that it is expanding faster and faster. That is, the universe is accelerating, and that was not expected, but it is now attributed to this mysterious stuff called dark energy which seems to make up about 70 percent of the universe.

The popularity of fantasy surpassing science fiction and the popularity of apocalyptic fiction, particularly for young adults, may indicate a desire to escape a more difficult and confusing reality, even in astrophysics and particle physics.

It never ceases to amaze me that every second of every day, more than 6,000 billion neutrinos coming from nuclear reactions inside the sun whiz through my body, almost all of which will travel right through the earth without interruption.

I used to think information was destroyed in black hole. This was my biggest blunder, or at least my biggest blunder in science.

You might expect gravity would slow it down, but it's just expanding faster and faster.

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.

First is Epsilon, which equals 0.007, which is the relative amount of hydrogen that converts to helium via fusion in the big bang.

In fact, this spaghettification becomes so severe that even the atoms of your body get pulled apart and eventually disintegrate. To someone watching this remarkable event

If we are right, big bangs are taking place even as you read this sentence.

why doesn't the universe spin?

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

Fifth is Q, the amplitude of the irregularities in the cosmic microwave background, which equals 10

A Dyson sphere is a gigantic sphere around a star, designed to harvest the energy from its massive amounts of starlight.

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

They imply that a region of space the size of a pea would be stretched larger than the observable universe in a time interval so short that the blink of an eye would overestimate it by a factor larger than a million billion billion billion.

turn the earth into a black hole you'd need to squeeze it down to about two centimeters across;

Based on the composition of the sun—the quantities of various heavy elements it now contains, determined by spectroscopic measurements—solar physicists believe the sun is a grandchild of the universe's first stars, a third-generation arrival.

For instance, a black hole as light as a small asteroid would emit about as much radiation as a million-megaton hydrogen bomb, with radiation concentrated in the gamma-ray part of the electromagnetic spectrum.

Who are we? We find that we live on an insignificant planet of a humdrum star lost in a galaxy tucked away in some forgotten corner of a universe in which there are far more galaxies than people.