I need a number of how big is the univers, please only reply with numbers...thanks.
2006-08-14 09:10:20 · 18 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
28 billion light years.
From wherever the big bang started, the universe has been traveling outward for about 14 billion years, which would give it a 14 billion light year radius (a light year is about 6 trillion miles).
Note: That would assume that the speed of light has always been the same, which does not have to be true. Also, scientists suspect that although universe has a definite size of some sort, its complex math allows it to double back on itself in some form or another, meaning that you could travel forever and not reach and edge. So don't imagine the universe to to be a giant ball, because that would indicate it has a measurable center and notable edges.
2006-08-14 10:06:08 · answer #1 · answered by iandanielx 3 · 0⤊ 1⤋
Several people have the right idea. The Observable Universe is all that we can ever see. Red shift indicates that the Universe is expanding. The farther away a galaxy is, the faster it is moving away. Any of them moving faster than the speed of light are beyond the limits of observation. I have seen estimates of 12 to 15 billion light years as that limit. Some theories have space curving in dimensions beyond the usual three. In that case, a trip to the end of the Universe could be like sailing around the Earth. One would return to his starting point if he continued indefinitely in a seemingly straight line. Some theories have many Universes. Getting from one to another is tricky if not impossible.
2006-08-14 17:02:31 · answer #2 · answered by miyuki & kyojin 7 · 0⤊ 1⤋
Even with numbers I can't comprehend the size of our ever expanding universe. Maybe as much as 15 billion light-years across. A light year is the distance that light travels in a year___about 5.88 trillion miles. You can do the math.
2006-08-14 16:28:11 · answer #3 · answered by no nickname 6 · 1⤊ 0⤋
There is no answer to your question because infinity is not a number, never was a number, and will never be a number. It is not even a changing number because it would have had to have been a number at some point to change.
You could say that there is only 1 of them, though.
2006-08-14 16:23:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
This Universe keeps on expanding on thick sheet of space and time, well we can not give you precise calculations but according to astronomers this Universe is expanding at the rate of 500 light years per second.
2006-08-15 07:41:44 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Latest number is around 180 billion light years wide...
Oldest star seen is around 13.7 - 15 billion years old...
Distance to this star is 13.7-15 billion years however you
must remember that this star has been traveling outward
for 13.7 - 15 billion years since the light we are seeing now
arrived recently...
2006-08-14 17:38:52 · answer #6 · answered by Anonymous · 0⤊ 1⤋
the radius of the universe is approximately 1/0 centimeters
2006-08-14 16:14:22 · answer #7 · answered by gjmb1960 7 · 0⤊ 1⤋
check this out. this is the latest (this week) Universe Today newsletter:
Universe could be larger than previously thought.
http://www.universetoday.com/2006/08/07/the-universe-could-be-larger-than-previously-thought/
Hope you find the answer you want there. Good luck!!!
2006-08-15 04:14:10 · answer #8 · answered by june81 2 · 1⤊ 0⤋
It takes over 13 billion light years to get from one end to another, and the thngs just keeps getting bigger!
2006-08-14 16:37:19 · answer #9 · answered by AmandaGurl<3 5 · 0⤊ 1⤋
the observable universe is about 13.7 billion light years in radius. Beyond that, nobody knows.
2006-08-14 16:24:02 · answer #10 · answered by what_m_i_doing 2 · 0⤊ 1⤋