Quasars

[Quasar]

A Quasar (or quasi-stellar object, to give them their original name) is a galaxy nucleus containing a very active supermassive black hole. Their light output often shines with the light of a trillion suns or more, more than many galaxies, and several times more than our own Milky Way galaxy...

They are formed when there is a huge abundance of dust and other matter to feed the central supermassive black hole of a galaxy... sometimes this can be caused by the collision of two galaxies...

They are the brightest known x-ray source...

They are by far the most powerful known force in the universe...

Many have very large re-shifts, which means they are moving away from us very quickly and we see them as they were billions of years ago...

The larger ones consume the equivilent of 1,000 solar masses in a year, the largest known consumes the equivilent of 600 earth masses PER HOUR!

Now, is that awesome, or is that awesome? :grin:

[D!S7RUG@7OR]

More, more , more! :grin:

I always liked Discovery or National Geographic's documentaries about SF...
Now the real question comes.. are black holes or quasars gates to another parts of the universe or they are just anomalies with the only purpose of eating suns and even galaxies?

I guess that i must to go thru one to find out the answer...:grin::rolleyes:



Cya ;)

[bdroc]

i dont know a whole lot on the subject, but it almost seems since they are "so far away"...that they are so far back in time, it could be the beginning of a galaxy rather than an anomaly, maybe our galaxy looked like a quasar at one point

[Elaine]

in fact every galaxy contains supermassive black hole in its center but some of those black holes are "sleeping" like in our galaxy but some are not.

[Aragon Speed]

More, more , more! :grin:

I always liked Discovery or National Geographic's documentaries about SF...
Now the real question comes.. are black holes or quasars gates to another parts of the universe or they are just anomalies with the only purpose of eating suns and even galaxies?

I guess that i must to go thru one to find out the answer...:grin::rolleyes:



Cya ;)
If you really want to know about black holes, forget national geographic.

Horizon: Supermassive Black Holes - Part one: http://www.youtube.com/watch?v=dbSek274iIY
Horizon: Supermassive Black Holes - Part two: http://www.youtube.com/watch?v=BWCBECQag0g

;)

[Quasar]

The REAL authority is:-

The Edge of Infinity: Supermassive Black Holes in the Universe by Fulvio Melia

one of the most fascinating reads you'll ever have!

Now to answer the question in D!'s post!
The reason Black Holes are black, is that light cannot escape, because the gravitational pull exceeds the speed of light, therefore bending light rays in on themselves. I you pass into a Black Hole, you pass into a place where there is, at the same time, no time, and infinite time... therefore if you could escape, which is unlikely (as only paired particles can, which is why Black Holes that are not fed lose mass slowly over time, Stephen Hawking, The Universe in a Nutshell) so, unless you come out one particle at a time, which may probably spread you over an extensive area (it wont kill you, as you would almost certainly have been long dead)... you could stay in there for up to an infinite period of time.

That said, if you still wish to try.... :grin: