English Deutsch Français Italiano Español Português 繁體中文 Bahasa Indonesia Tiếng Việt ภาษาไทย
All categories

If the universe is 13bil yrs old and started from a single point

2006-09-29 03:18:56 · 13 answers · asked by Leebo 1 in Science & Mathematics Astronomy & Space

13 answers

Much of it has, but a star is not a light bulb that turns off...it burned for millions of years. Also new star are constantly form while older star die. The distance doesn't tell us the age of the star.

2006-09-29 03:22:53 · answer #1 · answered by The Cheminator 5 · 1 0

Even if everything started in a single point, as far as we can tell, stars are still being born.

The light from a star will continue to hit the Earth as long as the star is active. Once the star stops emiting any form of radiation, the light will stop hitting the Earth. OK, ok- there is a delay in this- if the star is 10 billion light-years away, it will take 10 billion years for the last photon to pass by.

Kinda weird to think about- all those stars we see- how many are really dead but the light is still reaching us?

2006-09-29 03:35:45 · answer #2 · answered by Madkins007 7 · 0 0

We are 10 billion light years away from that star. Universe might not have started from a single point or receded at a faster rate in the beginning. But I would rather believe universe was not started from a single point.

2006-09-29 03:56:09 · answer #3 · answered by Dr M 5 · 0 0

They have passed us a long time ago, and will continue to pass us for many many more years.
And if a 10 billion year old star is 10 billion lightyears away, it would just be getting here now anyway.
Stars, like our sun for instance, do not just turn on for a fraction of a second and they turn off. Light will continue eminating from the star for many millions of years (some more, some less of course)

2006-09-29 03:23:38 · answer #4 · answered by artisticallyderanged 4 · 1 0

comparable with dinosaur bones - satandidit after goddidit. i'm no longer a Christian, yet i will could desire to declare that there is a distinction between creationism and youthful Earth Creationism. many religious human beings (maximum Christians everywhere interior the international, which contain the Pope - different than interior the U. S.) have self belief that the universe is extremely previous, and *do* settle for the great Bang concept etc. asserting God is the best mover or first reason would not call for which you compromise for the 6 day introduction as literal. the great Bang concept replace into, in certainty, first proposed by skill of a Catholic priest. Oh, and in case you will tout technological know-how as plenty greater desirable than faith, it could be somewhat greater lifelike in case you quite understood it. easy years are a level of DISTANCE, no longer time. subsequently no longer something replace into created any volume of light years in the past.

2016-12-12 17:20:19 · answer #5 · answered by herzog 4 · 0 0

the star formed 10 billion years ago AT A POINT more than 10 billion light years from our PRESENT location so the light is on the way

2006-09-29 03:28:06 · answer #6 · answered by Anonymous · 0 0

I think because light also takes some time to reach from one place to another. So, probably the motion of our solar system and the direction of the light ray would be in the same direction, and they would never meet.
Hope that helps.

2006-09-29 03:25:52 · answer #7 · answered by Anurag S 2 · 0 1

our galaxy "Milky Way" too is moving very fast, and that star too is moving too fast, away from each other... creating a kind of "doppler effect" and other complications that make light work more hard to reach a place.

2006-09-29 03:28:02 · answer #8 · answered by Vishy 2 · 0 0

It would depend on the star's location in relation to us.

2006-09-29 03:26:57 · answer #9 · answered by Anonymous · 0 0

lightyears! when a star super novas(explodes), and it was 1500 lightyears away, it actually had it's super nova 1500 years ago. the light from that super nova reaches us.

2006-09-29 21:07:46 · answer #10 · answered by Cool_dude 3 · 0 0

fedest.com, questions and answers