How many galaxies and solar systems?

[Dave2]

How many galaxies and solar systems within each galaxy does conventional science believe exist?
And how many exist in the Stargate universe?

So far I think we have the Milky Way, the Pegasus, the Ida and the galaxy of the Ori. And if there are several thousand solar systems in each, of which say 10% have intelligent life (including of course Unas and Wraith and the like), that would account for what, about a couple of thousand inhabited worlds per galaxy?

If I remember correctly, Teal'c once said they had visited 150 some planets, so that could account for only about 25% of all inhabited planets in the Milky Way, correct?

Now these numbers would also have to take into account many planets who either did not have stargates from the Ancients or who had no contact with Earth, the goa'uld or each other. If I recall correctly the Aschen had never encountered the goa'uld.

Even in the Pegasus galaxy there must have been many planets who never encountered the Wraith (lucky them!) and same goes for the galaxy of the Ori before they were destroyed.

Speaking of Ancients, I can never get straight their story properly. Did they originate in their own galaxy and get forced to travel to the Milky Way because of the Wraith, and of all the possible planets they settled on Earth? Then they returned to their galaxy while leaving behind stargates on Earth and elsewhere as well as inhabitants? And did they establish their own human colonies throughout all the galaxies of the universe, or did humans develop independently in the universe without the Ancients? Who did the Ancients believe created themselves if they were the very first humanoids? Did they beleive in God as the Creator?

[Gen. Chris]

Current estimates of galaxies are in the billions, with each galaxy consisting of billions of stars. Dwarf galaxies are the most numerous but with a few billion stars each they still contain a lot.

[jelgate]

If we go by the Stargate parameters their are billions of solar systems in the Milky Way

[Dave2]

I am no science expert and I am wowed that there could be BILLIONS of solar systems in a single galaxy.

What does this mean for what the Ancients did with the stargates in every galaxy? How many could they have produced and how many planets could they have seeded, or alternatively how many inhabited planets could there have been?

How could the goa'uld, Ori or Wraith have accessed even the tiniest fraction of the total number of inhabitated planets, which according to the estimate of billions of star system could be at least literally several MILLION? Meaning that only the tiniest fraction of inhabited planets could have had contact with the Bad Guys, including even the replicators. Thus, something like 99% of all inhabited planets would have never had any contact OR any stargates from the Ancients within the realm of practicality.

If we go by the Stargate parameters their are billions of solar systems in the Milky Way

[Snowman37]

Click here and here for the scale of the universe.

[Dave2]

Thanks, but it's pretty Greek to me. Looks like something that Carter, Dr. Lee and McKay would like the best.
In any case, do you think I'd be right about the percentages of inhabited planets with contacts with the goa'uld, with stargates, etc. = only 1% of all humanoid worlds? The ancients couldn't possiby have seeded and provided stargates for more than the tiniest fraction of worlds in all those galaxies.
Take into account that scientists say there are at least 3000 galaxies. So how many of the trillions of inhabitable planets could have gotten seeded, gotten a stargate, met up with the Ori, goa'uld or wraith or even replicators?

Click here and here for the scale of the universe.

[Snowman37]

You don't have to understand the terminology. Just focus on the pictures, and observe how much bigger the universe is as you zoom in and out. It's mind boggling.

[SF_and_Coffee]

Does canon even suggest that the Ancients put stargates in every galaxy?

[Gen. Chris]

Does canon even suggest that the Ancients put stargates in every galaxy?

I would say definitely not...Not enough time.

[SF_and_Coffee]

That's what I thought. Thanks.

[Snowman37]

I would say... Milky Way and Pegasus are the central stargate networks. Then SGU came along and revealed a "string" of stargates from Milky Way to whatever galaxy the Destiny was in. Did each galaxy get a network, or just a line of stargates from one edge to the other? Regardless... Oh, and then the Asgard had a stargate. Did they have a network? Given it was a Milky Way stargate, I just presumed the Asgard had the one stargate to reach the Milky Way galaxy from their homeworld without traveling via starship. However, there could have been a small network of ten or so Milky Way gates in the Asgard galaxy.

[Dave2]

But of course then there were in fact some known planets (among the millions) of inhabited worlds which neither had a stargate and/or had no contact with the Bad Guys, i.e. the Enkarans on their home planet and the Gameer planet wherever that was, as well as folks like the Aschen.

Could you also direct me to a clear explanation of how the Ancients started, where they were and went to, and where the seeded, etc. And were all humans in the millions of planets originally from the Ancients or did they develop independently?

I would say... Milky Way and Pegasus are the central stargate networks. Then SGU came along and revealed a "string" of stargates from Milky Way to whatever galaxy the Destiny was in. Did each galaxy get a network, or just a line of stargates from one edge to the other? Regardless... Oh, and then the Asgard had a stargate. Did they have a network? Given it was a Milky Way stargate, I just presumed the Asgard had the one stargate to reach the Milky Way galaxy from their homeworld without traveling via starship. However, there could have been a small network of ten or so Milky Way gates in the Asgard galaxy.

[Alteran Prior]

There are billions of galaxies in the observable portion of the universe (the "visible universe") within which light has had time to reach Earth since the big bang, but the universe as a whole could be infinite, with an infinite number of galaxies spread throughout infinite space, all spreading out as space expands (stretches). The edge of the "visible universe" that we cannot see past is simply the distance within which light has had time to travel to us since the big bang. That does not mean that space (and the galaxies it contains) does not continue beyond that range and possibly to infinity. It simply means that light from more distant objects has not had time to reach Earth yet. In other words, the visible portion of the universe is not the entire universe. The visible portion of the universe is just a visible range relative to Earth, and Earth is at the center of it. So the so-called "visible universe" is geocentric, but the entire universe could be infinite with no edge and no center. The big bang did not happen at a central point; it happened everywhere at once (since it created space itself), and created an expanding and possibly infinite space. Any finite region of that space (such as the so-called "visible universe") thus grows in size and becomes less dense as space stretches out. Shortly after the big bang, the finite region that would become the "visible universe" was very small but the whole of space was (possibly) already infinite.

[SF_and_Coffee]

Most of the humans we saw in SG-1 seem to have been descended from people kidnapped from Earth by the Goa'uld over at least a couple of millennia or more.

[blueray]

i believe there is at least thousands of planets in the milky-way, most of them have stargates (not all though). the human populations seem to all have come from earth at some point.

the peagasas galaxy doesn't have as much of as a population as the milky-way galaxy as it seems in the show. and they are descendents of the some of the ancients (i guess). as are the people from the ori galaxy (well the whole group including the ori).

as for where the gates are, from sgu it seemed like those galaxies had a few gates but didn't seem to have much of intelligent life. except for the group that was attacking destiny (and novus).

[QuantumIguana]

In the immortal words of Douglas Adams, "Space, is big. Really big. You just won't believe how vastly, hugely, mindbogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space..."

In 1999, NASA estimated that there were 125 billion galaxies in the universe. Our own galaxy, which is of fairly average size, is extimated to contain between 100 billion and 200 billion stars. That's up to 25 sextillion (25,000,000,000,000,000,000,000) stars. As of 2002, when the article was written http://imagine.gsfc.nasa.gov/docs/as...s/021127a.html, Hubble had observed 3,000 galaxies but that is nothing compared to the total number of galaxies out there.

Take a look at the Hubble Deep Field http://en.wikipedia.org/wiki/Hubble_Deep_Field and Hubble Ultra Deep Field http://en.wikipedia.org/wiki/Hubble_Ultra-Deep_Field They pointed the Hubble Space Telescope at a region of space that seemed to be empty, but with long enough exposures, they kept seeing more and more and more galaxies.


http://wiki.answers.com/Q/How_many_g...e_in_the_world

The University of Hawaii estimates tha there are over 17 quintillion grains of sand on all the beaches of the Earth combined. This means there are far more stars in the universe than there are grains of sand on our planet. The universe is not only bigger than you imagine, it is bigger than you can imagine.

[SF_and_Coffee]

Love this. ^