If the universe is only 13.7 billion years old, how can we see objects that are 30 billion light-years away?

Answer 1

A light year is a measurement of distance. We are able to see objects farther away than the age of the universe because the universe is expanding. The space between our galaxy and another galaxy is expanding. As the space between the two galaxies expand, the other galaxy appears to be farther away than it should.

Answer 2

You are well within reason to assume that we shouldn't be able to see an object that is more than 13.7 billion light years away, because of course there hasn't been enough time in the universe's existence for light to reach us from any further away than that. However, there is a flaw in that reasoning. An object like the one you are describing was 13.7 billion light years away, 13.7 billion years ago when it emitted the light we are now seeing. Since then, it has moved billions of light years further away. And since there are theories of cosmic inflation that allow the universe itself to move faster than the speed of light, we can see objects that are now several times further from Earth than the light distance equivalent to the age of the universe.

Answer 3

A light-year is a measurement of distance. The speed of light is about 186,000 Mi or 300,000 Km per second in a vacuum if i remember right. and the distance to the moon is like 1.4 light seconds, and to the sun 8.3 light minutes. So the light from the sun that hits your skin is a little over 8 minutes old.
So it will take you 30 billion years to reach those objects traveling at the speed of light. If its a star your looking at through a telescope thats 30 billion light-years away then the light your looking at is 30 billion years old.
Good question bud.

Answer 4

The radius of the Universe was Einsteinian calculated as 1.42 x10^26meters. but its still an aproximation. As far as the age ofthe Universe it all depends from which frame of reference you are observing it. Einstein is my friend on this thought. So when you assign time to the inception of the Universe ,You must Understand that we are looking at it from the Human point of view. And Human vision as a rule is mostly very obscure.

If you could see an object ,and let say you are sitting on that object 15 billion light year of distance.,and your parents were observing you with the best electronic telescope from good ole earth ,they would be in tears because they would think you have disappeared.

Answer 5

Because objects also travel and sometimes at fast speeds. Some deep sky objects travel at near light speeds, hence if a star or objects is moving away from us at say, half light speed then in 14 billion years that light eventually becomes 21 billion lights years away.

Answer 6

Many products have moved previous what we may be able to work out domestically (by using time because the large Bang and the speed of sunshine. area, between galaxies, expands everywhere. positioned a group of beads on a bungee cord. between the beads is your galaxy. you will see that to the top beads. Now pull on the ends of the cord. each and every of the beads flow aside on a similar speed because the cord lengthens. yet relative for your bead, the outermost ones are shifting faraway from you at an fairly severe speed. it is what occurs to galaxies as area expands. also, the universe did not amplify in basic terms after the large Bang as a lot because the modern at a consistent fee. there replaced right into a couple of minutes in basic terms after called the inflation era. The universe expanded at an fairly severe fee, possibly tens of millions of situations faster than the speed of sunshine. it truly is because the reduce we've did not be conscious decrease back that early. The guidelines of physics were diverse, as there have been no debris in life, no count number. there replaced into in basic terms skill. extra mutually, this makes the likely length of the universe to be more advantageous than might want to be accounted for in basic terms by technique of the speed of sunshine and the time because the large Bang.

Answer 7

ok ok is something is 30 billion light years away and something is 13 billion years old...there is a big difforents...1 is distance away from the object and the other is how old the object is

Answer 8

The answer lies in the theory that we, from our miniscule vantage point, can accurately determine both time and distance at progressively increasing increments. That theory is inaccurate, therefore, the calculations (13.7 and 30 billion) are inaccurate.

Answer 9

Light years are just a from of length
1 light years is equal to, about 9,460,528,404,879 km

The nearest known star (other than the Sun), Proxima Centauri is 4.22 light years away

Answer 10

Who said we can see ANY objects beyond the "Big Bang" Event Horizon and the time till the Universe became "Transparent" to light?????

You been smoking tooo much HomeGrown my friend! LOL 8-)

Check this link: http://www.astro.ucla.edu/~wright/age.html