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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
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What evidence shows that quasars are ultraluminous but must be very small?
Quasars are highly luminous due to the accretion of mass onto supermassive black holes at their centers. Since their luminosity comes from a small region near the black hole, they must be compact in size. Observations of rapid variability in their light output further support the idea that quasars are small objects, as these changes happen on timescales that would be consistent with a compact source.
Does the existence of quasars support the Big Bang theory?
Not the existence of quasars, but the fact that all quasars are distant from us. The best explanation for what we observe when we see quasars is that they are super-massive black holes in early galaxies, burning up solar "fuel" so rapidly that they eventually run out. We do not observe any quasars near to us, so the conditions that allowed quasars to form must have existed only several billion years ago. If our Universe has not changed its basic structure and density over the last 15 billion years or so, then the conditions that would allow quasars would allow them to exist at any time over that span. This would mean that there should be just as many quasars close to us as there are far from us. But we just don't see that. As is the case with many of the things we see, this is easy to explain via Big Bang Cosmology but almost impossible to explain with any alternative.
What would happen if the earth did not have its current orbit around the sun?
Well a lot of things might happen like: If it was further every thing would freeze And if it was near the sun every thing would burn Either way WE WOULD DIE
Do quasars range between 1 and 500 miles in diameter and revolve around the sun?
Quasars are believed to be gigantic black holes - millions of times the mass of our Sun. If we were anywhere near a quasar, it would be more accurate to state that the Sun (or the Solar System) revolves around the quasar, not the other way round.
Are quasars dangerous?
Quasars are not dangerous to humans as they are located very far away in distant galaxies. They are powered by supermassive black holes and have immense energy outputs, but their effects are not felt on Earth. Quasars are important for understanding the early universe and the physics of black holes.
What would happen if quasars were found near earth?
earth would no longer exist
What would happen if quasars were found very near earth?
well if a quasar were pointed at earth for only ten seconds it would decimate our ozone layer causing a disruption in the food chain, food shortages, starvation, and mass extinction.
What would happen if a black hole passed through the earth like a needle?
Nothing, The earth would be sucked up before it even got near to the earth.
What evidence shows that quasars are ultraluminous but must be very small?
Quasars are highly luminous due to the accretion of mass onto supermassive black holes at their centers. Since their luminosity comes from a small region near the black hole, they must be compact in size. Observations of rapid variability in their light output further support the idea that quasars are small objects, as these changes happen on timescales that would be consistent with a compact source.
What would happen if the earth gets very near to sun?
We would die because the temperatures would be to hot for life to take place.
What would happen if a flood happen near a ocean?
there is no possible way to flood the ocean but if you mean if the ocean started to flood the earth then the results could be catastrophic.
Does the existence of quasars support the Big Bang theory?
Not the existence of quasars, but the fact that all quasars are distant from us. The best explanation for what we observe when we see quasars is that they are super-massive black holes in early galaxies, burning up solar "fuel" so rapidly that they eventually run out. We do not observe any quasars near to us, so the conditions that allowed quasars to form must have existed only several billion years ago. If our Universe has not changed its basic structure and density over the last 15 billion years or so, then the conditions that would allow quasars would allow them to exist at any time over that span. This would mean that there should be just as many quasars close to us as there are far from us. But we just don't see that. As is the case with many of the things we see, this is easy to explain via Big Bang Cosmology but almost impossible to explain with any alternative.
What would happen if the earth did not have its current orbit around the sun?
Well a lot of things might happen like: If it was further every thing would freeze And if it was near the sun every thing would burn Either way WE WOULD DIE
Where on the Earth's crust are earthquakes most likely to happen?
near the plate boundaries
What would happen to earth if it went through a black hole?
Black Holes are nowhere near earth, but if we do get close enough it will first rip us apart or if it's gravatational pull isn't that much then we would just get crushed?
What would happen if a super nova hit earth?
A supernova is an exploding star. The Earth would be instantly incinerated, of course. There is approximately zero chance this will ever happen, though. If there was a supernova near Earth ... it would depend on how near. Betelgeuse is a good candidate for a supernova "soon" (within the next million years or so). Scientists who have modeled supernova explosions don't expect it will have much of an impact. If a star nearer than Betelgeuse were to go supernova, then it might be more serious.
What would happen if a scarecrow was near a fire?
It would be warmer than if it were not.
