Not entirely - although it is believed that quasars are caused by a gigantic black hole.
No
If blackholes reach the earth the earth will destroy. Blackhole are to large it can eat star easily.
Stephen Hawking is currently researching the origins of blackholes and the effects of blackholes on the matter surrounding it.
quasars
Quasars are galaxies which are much brighter than ordinary ones. they are as bright as 100 galaxies put together. they are also as powerful as several blackholes put together. quasars are seen as faint light from the earth this shows how powerful they are to be seen from the extreme end of the visible universe in any case if the quasars were any nearer to the earth the earth would be pulled into by the ultra strong black hole due to the extreme intense gravity.no information in the form of light or radio waves would come out of it, its presence can be inferred only from the gravitational force it exerts on the bodies close to it
Quasars are thought to be distant super-massive black holes.
The first quasars were discovered in the 1950's
Yes. Quasars are the size of the solar system.
Quasars do not have galaxies in them, quasars are at the hearts of galaxies. All quasars are located in galaxies, as a quasar involves massive amounts of material falling into a supermassiv black hole. Neither of these can be found outside of a galaxy.
Whiteholes and wormholes are two different things. A whiteholes are the opposite of blackholes because they spit things up. If you go into a wormhole it will take you to a different part of the universe and you will either go forward in time (future) or you will go back in time (past.)
Albert Einstein.
Quasars are not gone; they are still observed in the universe. Quasars are powered by accretion of material onto supermassive black holes at the centers of galaxies, which can make them appear as some of the brightest and most powerful objects in the universe. However, the number of observed quasars may be influenced by factors such as the current stage of galaxy evolution or observational limitations.