A Quote by Clifford D. Simak
This is the very center of everything there is. A huge black hole eating up the galaxy. The end of everything.
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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?'
If you want to see a black hole tonight, tonight just look in the direction of Sagittarius, the constellation. That's the center of the Milky Way Galaxy and there's a raging black hole at the very center of that constellation that holds the galaxy together.
Our galaxy's pretty ordinary, garden-variety. So if we believe our galaxy has a super massive black hole, that tells us that most, if not all, galaxies host such a black hole at their centers.
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.
Data suggest that central black holes might play an important role in adjusting how many stars form in the galaxies they inhabit. For one thing, the energy produced when matter falls into the black hole may heat up the surrounding gas at the center of the galaxy, thus preventing cooling and halting star formation.
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.
The question that I started off with was, I thought, very simple. It was just 'Is there a massive black hole at the center of the Milky Way?' But one of the things I love about science is that you always end up with new questions.
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.
When you fall into a black hole, everything that falls in after you over millions of years, as seen by you inside the black hole, comes pounding down on you in a fraction of a second, because of the enormous differences of time flow.
There used to be a huge hole in my life that I wrote many albums about. I didn't realise it was a wife-and-daughter-shaped hole. They've plugged that gap. Everything I do, I do for them now. When daddy goes to work, it's daddy going to work, not Rob going to work. I feel like there's a purpose to everything.
People with eating disorders tend to be very diametrical thinkers – everything is the end of the world, everything rides on this one thing, and everyone tells you you're very dramatic, very intense, and they see it as an affectation, but it´s actually just how you think. It really seems to you that the sky will fall if you are not personally holding it up. On the one hand, this is sheer arrogance; on the other hand, this is a very real fear. And it isn't that you ignore the potential repercussions of your actions. You don't think there are any. Because you are not even there.
I'm interested in finding whether or not there is a really massive, what we like to call 'super massive' black hole at the center of our galaxy. And the reason this is interesting is that it gives us an opportunity to prove whether or not these exotic objects really exist.
In stories, everything has to have clear consequences and everything has to focus to the end. Everything at the end will give meaning to everything that precedes. In my own life, the consequences of the choices I've made aren't always very clear. The most beautiful things are sometimes not totally truthful, and the end will not give more meaning to everything that precedes.
The aim of particle physics is to understand what everything’s made of, and how everything sticks together. By everything I mean me and you, the Earth, the Sun, the 100 billion suns in our galaxy and the 100 billion galaxies in the observable universe. Absolutely everything.
I had a very brilliant father who was not only intellectual, but was street-smart and very curious to boot. The day I found out that he didn't know everything, I grew up. It was a shock. I just thought that the man was the end-all of everything, and he knew the answer to everything. Then I found out I'd have to find out my own answers.
Our galaxy, the Milky Way, is one of 50 or 100 billion other galaxies in the universe. And with every step, every window that modern astrophysics has opened to our mind, the person who wants to feel like they're the center of everything ends up shrinking.
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