A Quote by Andrea M. Ghez

The key to proving that there's a black hole is showing that there's a tremendous amount of mass in a very small volume. And you can do that with the motions of stars.

Andrea M. Ghez

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Amount Black Black Hole Hole Key Mass Motions Proving Showing Small Stars Tremendous Tremendous Amount Very Volume

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Andrea M. Ghez
American - Scientist
Born: June 16, 1965

The key to proving that there's a black hole is showing that there's a tremendous amount of mass in a very small volume. And you can do that with the motions of stars. The way the star moves around the center of the galaxy is very much like the way the planets orbit the sun.

Andrea M. Ghez

Proof of the black hole is a tremendous amount of mass inside a very small volume. There's 4 million times the mass of our sun within a region that's comparable to the size of our solar system.

Andrea M. Ghez

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.

Andrea M. Ghez

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!

Andrea M. Ghez

A big misconception is that a black hole is made of matter that has just been compacted to a very small size. That's not true. A black hole is made from warped space and time.

Kip Thorne

In the first book I shall describe all the positions of the spheres, along with the motions which I attribute to the Earth, so that the book will contain as it were the general structure of the universe. In the remaining books I relate the motions of the remaining stars, and all the spheres, to the mobility of the Earth, so that it can be thence established how far the motions and appearances of the remaining stars and spheres can be saved, if they are referred to the motions of the Earth.

Nicolaus Copernicus

It followed from the special theory of relativity that mass and energy are both but different manifestations of the same thing - a somewhat unfamiliar conception for the average mind. Furthermore, the equation E = mc², in which energy is put equal to mass, multiplied by the square of the velocity of light, showed that very small amounts of mass may be converted into a very large amount of energy and vice versa.

Albert Einstein

One of the big mysteries about the black hole at the center of the galaxy is, 'Why don't we see emission from matter falling onto the black hole, or, rather, the black hole eating up its surroundings?'

Andrea M. Ghez

The Gulf of Mexico is a very big ocean. The amount of volume of oil and dispersant we are putting into it is tiny in relation to the total water volume.

Tony Hayward

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

Stephen Hawking

There's a large cluster of stars that are orbiting the center of our galaxy. And by measuring the motion of stars, and in particular, their orbits, we can figure out whether or not there's a central black hole.

Andrea M. Ghez

I know that statistically, it has been proven that there is a tremendous amount of black on black crime within the inner cities.

Alex Haley

Although almost every theoretical physicist agrees with my prediction that a black hole should glow like a hot body, it would be very difficult to verify experimentally because the temperature of a macroscopic black hole is so low.

Stephen Hawking

Every press secretary faces an enormous amount of information. Events move really fast. You're responsible for a tremendous amount of information, and again, a tremendous amount on competing agendas. Not everybody grease in the White House.

Dee Dee Myers

It was never really one of my goals to gain tremendous amount of celebrity or make a tremendous amount of money necessarily.

Tony Shalhoub

But there's always a Mass. It's not a formal Mass at all. We're sitting around her dining room table with wine and Eucharist and holding hands. It's very informal and small, but to me that's a wonderful way to have Mass.

Linda Vester

A Quote by Andrea M. Ghez

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