How long would it take light to travel from the center of the universe to the further galaxy?
November 17th, 2008 | by admin |
aaron g asked:
I had just read that the closest galaxy to ours is 1.6 million light years away and that there are something like 200 billions galaxies. Is this correct information? Also, about how many stars are there in the universe? Given the age of the universe, how did matter reach such distances traveling slower than the speed of light? What’s the fastest speed the furthest galaxy had to travel to reach it’s current point in space?
I made a typo - How long would it take light to travel from the center of the universe to the furtherEST galaxy?
I had just read that the closest galaxy to ours is 1.6 million light years away and that there are something like 200 billions galaxies. Is this correct information? Also, about how many stars are there in the universe? Given the age of the universe, how did matter reach such distances traveling slower than the speed of light? What’s the fastest speed the furthest galaxy had to travel to reach it’s current point in space?
I made a typo - How long would it take light to travel from the center of the universe to the furtherEST galaxy?
7 Responses to “How long would it take light to travel from the center of the universe to the further galaxy?”
By ahdunno on Nov 19, 2008 | Reply
Nobody knows, it is too far to measure
space is infinate, if you disagree lets go on an imaginary journey right now,,,,,,,,, OK we are there on the edge of the universe and there is a massive brick wall, we look over the top, and, there is,,,,,,,,,,,,,,more space
By pragjnesh_reddy on Nov 20, 2008 | Reply
5 light years
By ankitd on Nov 21, 2008 | Reply
well, it again depends upon the distance because sadly till now we haven’t found about the farthest galaxy form ours. when we measure the galaxies in scale of the universe then we consider our galaxy in the centre of the universe because that eases our calculations. it could even be true that our galaxy may be in the centre. the same goes for the total no. of stars. we are uncertain about it.
thanks.
By Fredrick Carley on Nov 22, 2008 | Reply
Quasars are considered to be the most distant objects in the universe.
By spokoman_goliath on Nov 24, 2008 | Reply
If I got this right you want to know how these galaxies had traveled so much distance since the big bang without flying with the speed of light, right. Well, they did not. Actually when the universe was “created” there were no galaxies - the big bang spread all the matter in the whole space. So the galaxies didn’t travel anywhere, just the matter - lead by the gravity - has formed the galaxies in different places around the universe.
By NotEasilyFooled on Nov 25, 2008 | Reply
That’s a lot of questions.
To start with, there is no “center” of the universe as far as we know. It looks the same in all directions.
The nearest galaxy to milky way is the Canis Major dwarf galaxy, which is only 25,000 light years from us and only 42,000 light years from the center of the milky way. The Andromeda Galaxy is the nearest large galaxy–it’s 2.5 million light years away.
It is estimated that there are 70 x 10^22 stars in the observable universe.
While matter cannot travel faster than light, space itself can expand, and the rate of expansion can make the distance between objects increase faster than light speed. The expansion of space is the main reason that galaxies are so far apart–they really don’t “move” at anything close to light speed. There is still matter in the universe that is too far away for us to see–light has not had time to reach us from these places.
By Common Sense on Nov 26, 2008 | Reply
EXCELLENT question..
I would love to know the answer..
I know the most distant galaxy we have been able to
detect at the visible most distant edge of the universe is
about 13 billion light years…
Of couse we are not in the center of the universe so that
does not answer your question.