Quotes About Astrophysics

We live on a hunk of rock and metal that circles a humdrum star that is one of 400 billion other stars that make up the Milky Way Galaxy which is one of billions of other galaxies which make up a universe which may be one of a very large number, perhaps an infinite number, of other universes. That is a perspective on human life and our culture that is well worth pondering.

Except for hydrogen, all the atoms that make each of us up—the iron in our blood, the calcium in our bones, the carbon in our brains—were manufactured in red giant stars thousands of light-years away in space and billions of years ago in time. We are, as I like to say, starstuff.

Black holes collect problems faster than they collect matter.

There are some hundred billion (1011) galaxies, each with, on the average, a hundred billion stars.

Our Sun is a second- or third-generation star. All of the rocky and metallic material we stand on, the iron in our blood, the calcium in our teeth, the carbon in our genes were produced billions of years ago in the interior of a red giant star. We are made of star-stuff.

There are a vast number of stars within our galaxy. The number is not so large as the number of cometary nuclei around the Sun but is nevertheless hardly modest. It's about 400 billion stars, of which the Sun is one.

all the atoms that make each of us up—the iron in our blood, the calcium in our bones, the carbon in our brains—were manufactured in red giant stars thousands of light-years away in space and billions of years ago in time. We are, as I like to say, starstuff.

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 star stuff

We're made of star stuff. We are a way for the cosmos to know itself.

DNA'm?zdaki karbon, diÅŸlerimizdeki kalsiyum, kan?m?zdaki demir, içtiÄŸimiz sudaki oksijen kendi içine çökmüÅŸ bir y?ld?zdan yap?lm??t?r. Bu da biziy?ld?z tozu yapar.

What kind of god would allow the starlight from distant stars to continue forever, even after the star has 'died,'--a fundamental premise of contemporary astrophysics--yet would not provide the same opportunity for our personal biophotons?

If you had a piece of neutron star about the size of a grape, it would weigh 100 million tonnes.

This is the current state of our Sun, happily converting 600 million tonnes of hydrogen every second into helium to counteract the inward pull of gravity.

George Gamow

most of the iron that has found its way into the Earth's core and its surface rocks - and into our own blood, as well - once existed in white dwarfs that exploded

We have this interesting problem with black holes. What is a black hole? It is a region of space where you have mass that's confined to zero volume, which means that the density is infinitely large, which means we have no way of describing, really, what a black hole is!

The dark energy is not exactly zero, but the first 122 decimal points are zero. That's crazy. That is really one of the craziest things we've ever discovered.

When we initially proposed LIGO, the only sources that we were really contemplating were supernovae. We thought we would see something like one a year, maybe even ten a year.

If space is a fabric, then of course fabrics can have ripples, which we have now seen directly. But fabrics can also rip. Then the question is what happens when the fabric of space and time is ripped by a black hole?

A lot of the things you see in science fiction revolve around black holes because black holes are strong enough to rip the fabric of space and time.

The missing link in cosmology is the nature of dark matter and dark energy.

Evrenlerin patlad???, uzay?n ç?k??? olmayan delikler içine çöktü?ü, zaman?n bir gezegene inildikçe yava?lad???, y?ld?zlararas? uzay?n uçsuz bucaks?z enginli?inin deniz yüzeyi gibi dalgaland??? renkli ve ?a??rt?c? bir dünya...

Each black hole spins on its axis like the Earth spins. That spin creates two vortexes of twisting space, somewhat like vortexes in a bathtub or a whirlpool.

The most accessible field in science, from the point of view of language, is astrophysics. What do you call spots on the sun? Sunspots. Regions of space you fall into and you don't come out of? Black holes. Big red stars? Red giants. So I take my fellow scientists to task. He'll use his word, and if I understand it, I'll say, "Oh, does that mean da-da-da-de-da?