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.
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.
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.
I believe the closest black hole is in the center of the Milky Way galaxy... But is a black hole a dark hole? Hmm.
The first time an object was viewed as a black hole by most astronomers was in 1971. Prior to that, most astronomers were skeptical such an object even existed, let alone that one had been detected.
Perhaps you are confusing Universe with galaxy. Most galaxies have a black hole in their center. The Universe has no such thing as a center.
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.
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
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.
A black hole or a worm hole :) good luck
Yes
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.
Astronomers have detected a quasar in a distant galaxy.
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.
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.
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.
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.
i believe that the black spots are not fungus but the seeds of the fruits that are contained in the yogurt- Dr. Shadieu