The Age Of The Universe

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After several debates, astronomers have determined the age of the universe by using a Wilkinson Microwave Anisotropy Probe. By examining the microwave background radiation that WMAP provided, astronomers were able to pin down the age of the universe, accurate to 1%, to 13.7 billion years old.

19 Comments

  1. You say the universe is 13.7 billion light years old (BLYO). Then why is the size of the universe 176 BLYO which means edge of the universe is 78 BLYO. If, as you say, the universe is only 13.7 BLYO then where did the extra time distance come from? Creation is not repeatable. The question is not how old is the universe. The question is how did God get light here in 6,000 earth years. Is Transient Light constant? Measured in Cosmic Local Time or Cosmic Universal Time.

    Regarding WMAP:
    Cosmologists now regularly take data from very different experiments and combine them into a single result, though press results rarely discuss the input of the disparate data. An example of this was the February 2003 announcement of the latest 13.7 billion year age estimate of the universe, along with estimates of the percentages of mass distributed amongst lighted and dark matter and dark energy. Also left unsaid is how extremely model-dependent the conclusions are. That is, if we change the model slightly, the conclusions change as well. The recent claim of the discovery of evidence for inflation builds upon the earlier WMAP work, among others, and, like the others, is very model-dependent. For instance, how the observed E-mode polarization constrains the amount of inflation energy is model-dependent. The model dependence amounts to a type of circular reasoningcosmologists interpret the data assuming inflation, and then used the data to support inflation.

  2. It didnt say the universe was 13 billion “light” years old. The term ‘Light Year’ does not represent a Time frame. it represents a distance. A light year is the distance it takes light to travel in one year (approximately 5,874,589,152,000 miles)

  3. Here’s a thought starter…So far, cosmologists can only see as far as thirteen billion light years. After that, they can’t see anything. Is that the “end” of the universe? Or is the universe really infinite?
    And just exactly how small does all this size and distance discussion make you?

  4. This isn’t fact, it’s still just a theory; a (poorly educated) guess.
    There has been plenty of people who can validate their reasons for what they believe to be the age of the universe.

    Fossils are the perfect example for explaining this. Fossils only say 2 things – “It existed and died” The age of fossils are guessed too. Carbon Dating doesn’t work. Radioisotope decay tests doesn’t work. And when they date the fossils by the strata layers, little do people know that strata layers are dated by the fossils (Circular Reasoning)

  5. Brian Puetz Galileo once said, science takes the place of religion. So when ur in a discussion about science keep ur god out of it.

  6. You all make a great thinking conversation.. and it will go on for the rest of our lives. The only way you or any body else will find out is when we die. That is even if there is life after death. If not we will never know.

  7. 13.7 billion works for me. frankly i don’t see why people would get so worked up on this, unless you have your own different age for the universe. the way they determined this does seem to be a simple idea, which was basically to find a center point in the universe (where the big bang would have happened) and than measure how fast galaxies are moving away,how far they are from the center, and than how long it would have taken them to move that distance at their speed, which ended up in 13.7 billion years. given this method of measurement being able to father doesn’t matter. Now this simple idea of high school level physics and trigonometry was only my way of explaining basically what scientists did, i highly doubt that it was as simple as i made it sound.

  8. Dayvid wrote:
    Brian Puetz Galileo once said, science takes the place of religion. So when ur in a discussion about science keep ur god out of it.

    Albert Einstein once said
    “Science without religion is lame, religion without science is blind.”

  9. 1] Universe is just not expanding but also accelerating.
    2] 13.7 billion light years [BLY] is the maximum limit the present science can measure / identify. If any thing beyond that, can not be observed.
    3] This distance is from milky way. As we do not know the position of milky way from center of big Bang, we can not calculate the distance between two galaxies. Consider milky way at any point in a circle, knowing center of circle, with trigonometry, you we can calculate distance between any two points. But if the center or circumference in unknown, we can not calculate distance between 2 points.
    4]Scientist have difference of opinion on Big Bang theory itself. It may not have happened and universe is began devloping from the dark matter/energy that existed every time, every where. Every Black Hole explosion itself is big bang creating its won universe. So universe is unlimited, new science say…By Dr. Romel Dave, professor, Arizona university, USA.
    5]Light year is the distance traveled by light in one year…so we first consider it as a measure of distance. But when we observe/see some thing of one light year old milky way, we are observing the present light that was created one light year back, that is one light year old. So it light year represent the time as well as distance.

  10. Satish wrote:
    3] This distance is from milky way. As we do not know the position of milky way from center of big Bang, we can not calculate the distance between two galaxies. Consider milky way at any point in a circle, knowing center of circle, with trigonometry, you we can calculate distance between any two points. But if the center or circumference in unknown, we can not calculate distance between 2 points.

    I would just like to correct to this point SATISH, we actually do know where the Big Bang would have been.

    Scientists have just observed other galaxies and the directions they are moving away. It was observed that they were all moving away from a center point, so basically scientists drew lines in the directions of the motion and found a point where said lines intersect. That point is where the Big Bang would have occurred.

    Also to add to #2, besides the fact we cannot observe more than 13.7 billion light years away, we haven’t even observed half of the universe within that distance.

    Check out the free program “Microsoft World Wide Telescope”

  11. Hi, Anon, this is from Wikipedia-The age of the universe is 13.75 0.11 billion[1] years (433.6 x 1015 seconds in SI units, or 13.75 Gigayears) within the Lambda-CDM concordance model.[2] This is however only the estimated time since the Big Bang. It is not known if something existed before the singularity that we call Big Bang, nor if time is linear, since the expansion estimated by Hubble’s law assumed a linear expansion, and later work indicates there may have been variations.[3] The estimated changes in expansion are calculated to be both positive and negative, so Hubble and later estimates broadly agree.

    The uncertainty range for the age of the universe has been obtained by the agreement of a number of scientific research projects. These projects included microwave background radiation measurements by Wilkinson Microwave Anisotropy Probe and other probes, and more ways to measure the expansion of the universe. Background radiation measurements give the cooling time of the universe since the Big Bang.[4] Expansion of the universe measurements give accurate data to calculate the age of the universe.
    In short, age of universe predicted today can change, may be drastically, as shape of earth. As stated earlier, even the big bang theory is also in debate. I had brief discussion with Dr. Romeel Dave, a professor from Arizona university who works with WWT. I just stated his latest comments. Thanks for your reference and update.

  12. This is stupid …. space and time are infinite …. so from where we do these absurd ideas …
    always hear about big bang theory …. how do we know that was only one? …
    somewhere in this infinite space may have been a myriad of big-bangs… at different times…but the distance between them is greater than we can perceive as the distance between stars in the galaxy reported to their size…
    so do not limit your thinking …. again seem to think we are the center of the universe ….

  13. Albu Ioan wrote:
    This is stupid …. space and time are infinite …. so from where we do these absurd ideas …
    always hear about big bang theory …. how do we know that was only one? …
    somewhere in this infinite space may have been a myriad of big-bangs… at different times…but the distance between them is greater than we can perceive as the distance between stars in the galaxy reported to their size…
    so do not limit your thinking …. again seem to think we are the center of the universe ….

    That is all entirely possible. Many scientists theorize that perhaps the big bang is a massive cycle and could have not just happened before, but maybe even millions of times before or ever more still.

    Since everything we can see in the universe is limited by light and the amount of time it takes to travel to us, There is just no way of ever knowing about whats happen(ing/ed) in the entire thing.

  14. EDITED: All of this talk about “age of the universe” is a disgrace to science. There is absolutely no evidence of any kind that the universe is anything but eternal. The first law of thermodynamics, that matergy is never created or destroyed, absolutely implies that the universe is eternal. All people saying “the univese is about 14 billion years old” are out to lunch.

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