I saw a speaker yesterday who talked about her research on quasars and it was pretty interesting. She did her Phd work figuring out the different light frequencies quasars emit. Do any of you know more about Quasars, because I thought they were cool

they're big black holes at the center of each galaxy

actually, they are black holes that emit light caused by the release of energy by gases

They are also extremely distant, the energy produced by infalling gas is absolutely enormous.

I wonder why there are no nearby quasars, perhaps there is not enough gas near the center of present galaxies for the black holes at the middle to produce the gas jets characteristic of quasars?

I mean the quasars we see probably don't exist in the forms we see them, because of the great distances invloved and the time it took for their light to reach us.

Most Quasars are actually moving away from earth at nearly the speed of light which is why they are so far away. This mostly likely due to the expansion of the universe.

That sounds like it is implying that the Earth is the center of the universe.

Not at all.

Four quasars or one?

Your gay and so is your sig.

It is observed that they are all moving away from us because we are moving away too. The further something is from the center of the universe the faster it moves. The result is that things further away are percieved as moving faster. Anything moving towards us from the center of the universe is still going to appear to be moving away from us because we are moving away faster than they are moving towards us.