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Our galaxy does not contain "a" black hole, it contains thousands, perhaps millions, of them.


Astronomers believe there is a supermassive black hole near the center of the galaxy, with a mass of about 4 million solar masses. They reached this conclusion, among other things, by observing objects moving around it. This makes it possible to make an estimate of the mass. Some of the objects are quite near the ... object, whatever it is, and astronomers know of nothing except a black hole that can have such a large mass in such a small space.

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15y ago

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Why do astronomers believe that a supermassive black hole lies at the center of the Milky Way galaxy?

Astronomers believe a supermassive black hole lies at the center of the Milky Way galaxy because of the high speeds of stars and gas near the center, as well as the intense radiation emitted from that region. These observations suggest the presence of a massive object that can only be explained by a supermassive black hole.


In what part is a black hole in the universe?

Astronomers believe that black holes exist in the center of every universe. They even think that there may be a black hole in the center of our galaxy, the Milky Way


Is there a black hole in this galaxy?

Currently, most astronomers believe there is probably a large black hole at the center of most, if not all, galaxies, including ours. There are also probably many smaller black holes scattered throughout.


What do astronomers think is hiding in the middle of the core galaxy?

A black hole or a worm hole :) good luck


Do we believe there are black holes in our galaxy?

Yes


Is there any black hole in the galaxy Satan A?

I don't think there is a galaxy called "Satan A"; at least, not as a standard name, generally accepted by astronomers. On the other hand, most larger galaxies have a supermassive black hole at its center, and it can be expected that any galaxy has several stellar black holes.


Quasar in a sentence?

Astronomers have detected a quasar in a distant galaxy.


What is the distant galaxy with a black hole in its center?

Timing is everything as astronomers are making discovers all the time. As of an article posted in March of 2012 - Galaxy J1120+0641, containing the most distant supermassive black hole known to science, is so far away that light from it takes over 13 billion years to reach our planet. This means the light astronomers see from this galaxy is just 740 million years after the Big Bang.


Why might there be a black hole at the center of most galaxies?

The speed of rotation of a galaxy is related to the mass of the galaxy. Most galaxies appear to be spinning more quickly than their masses could account for, leading some scientists to believe that (many? most?) galaxies are heavier than they appear to be. So if there is a lot of extra mass that we cannot see, a black hole is a logical supposition. We can't prove it - yet - but many astronomers believe that supermassive black holes may reside in the centers of most galaxies.


Which is the biggest known black hole in the universe?

The supermassive black hole that hosts the galaxy NGC 1277, in the constellation Perseus, is currently the largest black hole in our visible universe with a mass equivalent to 17 billion suns. In 2012, astronomers have discovered this small galaxy about 250 million light-years from Earth.


Have astronomers discovered any black holes outside of your galaxy?

Yes. In fact, it seems that most galaxies have a gigantic black hole (with a mass of millions, or even billions, of times the mass of our Sun) in their center.


What type of fungus are the Black spots on yogurt?

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