Age of the universe

When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old. But that assumes we are in the
center of the universe and it expanded out from us. There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.

--
Two ways to improve your life.
1. Turn off the TV.
2. Throw it out the window.

Vlad the Impaler

Vlad wrote:
When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old. But that assumes we are in the
center of the universe and it expanded out from us. There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.

I meant 4 million light years away not 4 light years.

--
Two ways to improve your life.
1. Turn off the TV.
2. Throw it out the window.

Vlad the Impaler

They don't say that we are the center, but what they do is to see how much
the light is red shifted and THAT tells them how far away a star, galaxy,
etc. is from Earth, that does NOT say we are the center.

The big bang happened about 13.5 BILLION years ago.


--
The Lone Sidewalk Astronomer of Rosamond

Telescope Buyers FAQ
http://home.inreach.com/starlord
Sidewalk Astronomy
www.sidewalkastronomy.info
Astronomy Net Online Gift Shop
http://www.cafepress.com/astronomy_net
In Garden Online Gift Shop
http://www.cafepress.com/ingarden
Blast Off Online Gift Shop
http://www.cafepress.com/starlords
Astro Blog
http://starlord.bloggerteam.com/




"Vlad" wrote in message
news:zx%jg.3722$ZB3.1614@trndny05...
When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old. But that assumes we are in the
center of the universe and it expanded out from us. There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.

--
Two ways to improve your life.
1. Turn off the TV.
2. Throw it out the window.

Vlad the Impaler

Vlad wrote in news:zx%jg.3722$ZB3.1614@trndny05:

When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old.

No they don't.


But that assumes we are in the
center of the universe and it expanded out from us.

This is not assumed, nor do cosmologists even consider what you are saying
to be the case.

http://www.astro.ucla.edu/~wright/cosmo_01.htm

There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.


Garbage in garbage out.


Klazmon.

Vlad The universe is exactly 22 billion years old. Reality is
astronomers add a billion years to its age every 23 years. Bert

Vlad wrote:
When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old. But that assumes we are in the
center of the universe and it expanded out from us. There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.


Buzzz. Wrong, but thanks for playing.

If we see a galaxy that has a distance of 10 billion light-years based
on various distance indicators, then all we can say is that we are
seeing that galaxy the way it look 10 billion years ago. All galaxies
likely formed at about the same time. All galaxies are therefore likely
the same age. But galaxies change over time, and by looking farther
away we are seeing those galaxies as they were at those earlier times.

And, in none of the above is it assumed we are the center of the
universe, just the center of our own observations. Such would be seen
no matter where one was in the universe, with the farther away one looks
corresponding to earlier epochs in the universe.

G=EMC^2 Glazier wrote:
Vlad The universe is exactly 22 billion years old. Reality is
astronomers add a billion years to its age every 23 years. Bert


You need to keep up. The current estimate of the age is about 13.5
billion, based on data released from WMAP. Your second statement is
fals as well, as not too long ago, the age of the universe was thought
to be younger than 10 billion years until corrections were made in light
of Hipparchos data. About the only true statement of the three above is
your name, and even that can be questioned.

"Vlad" wrote in message
news:zx%jg.3722$ZB3.1614@trndny05...
When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old. But that assumes we are in the
center of the universe and it expanded out from us. There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.

--
If we can see a galaxy that is 10 billion light years away, then we know
the universe is at least 10 billion years old. If we can see one 15 billion
light years distant, then the universe must be at least 15 billion years
old. It may be older than that, but it can't be younger than that. If the
universe were, say, 10 billion years old, the farthest object we could
observe would be 10 billion year old. This does not mean that we are at the
center of the universe. It simply means that we can't see any further than
the universe is old.
All this assumes that time passes at the same rate for the universe as it
does for its contents. I don't agree with this assumption. I see no reason
why the universe can't be younger than its contents. We know that time
passes more slowly for extremely massive objects, and the universe as a
whole must be more massive than its individual contents. What we don't know
is whether or not time passes at the same rate for a massive object as it
does for its contents.

The oldest galaxy seen in a Hubble deep field is just about 11 billion years
old and it hold the record so far, we can't see past the ending of the age
of darkness.


--
The Lone Sidewalk Astronomer of Rosamond

Telescope Buyers FAQ
http://home.inreach.com/starlord
Sidewalk Astronomy
www.sidewalkastronomy.info
Astronomy Net Online Gift Shop
http://www.cafepress.com/astronomy_net
In Garden Online Gift Shop
http://www.cafepress.com/ingarden
Blast Off Online Gift Shop
http://www.cafepress.com/starlords
Astro Blog
http://starlord.bloggerteam.com/




"William Oertell" wrote in message
...
"Vlad" wrote in message
news:zx%jg.3722$ZB3.1614@trndny05...
When they view a galaxy 10 billion light years away they say that the
universe is about 10+ billion years old. But that assumes we are in the
center of the universe and it expanded out from us. There is no way to
know where we are in the universe. Close by galaxies could also be 10
billion years old even though they are only 4 light years away from us.
How arrogant to think we are in the center of the expansion.

--
If we can see a galaxy that is 10 billion light years away, then we know
the universe is at least 10 billion years old. If we can see one 15
billion light years distant, then the universe must be at least 15 billion
years old. It may be older than that, but it can't be younger than that.
If the universe were, say, 10 billion years old, the farthest object we
could observe would be 10 billion year old. This does not mean that we
are at the center of the universe. It simply means that we can't see any
further than the universe is old.
All this assumes that time passes at the same rate for the universe as
it does for its contents. I don't agree with this assumption. I see no
reason why the universe can't be younger than its contents. We know that
time passes more slowly for extremely massive objects, and the universe as
a whole must be more massive than its individual contents. What we don't
know is whether or not time passes at the same rate for a massive object
as it does for its contents.

Scott In time my 22 billion years will be reality. You are a parrot,and
have a Google brain. You will never change. Your thinking is done by
what a computer has stored. Someday you will be given a Turing test.
You have no wit Bert