5770 and 13,000,000,000 is a big difference!
I am looking for a good explanation for the different views of the age of the universe, [the Tanakh's view and astronomy's view.] Please help me out!
As an observant astrophysicist (pun intended; I'm actually a theorist), I get this question a lot. Personally, most answers I have heard seem rather contrived and do little justice to either the science or the Torah. The study of physics and the study of Torah are both wonderful pursuits of a "higher truth," but they consist of very different methods and really speak different languages. I am highly skeptical of any that claim proof of a theory in one field based on evidence from the other.
But to answer your question more directly, I view the issue as a classic example of the Torah "speaking in the language of man," a concept found throughout Rabbinic literature. We know the Torah was given to a rag-tag collection of ignorant slaves less than two months after fleeing for their lives, and having only the simplest knowledge of their own history, much less "science." How should the Torah begin? "In the beginning, 13.7 billion years ago, the scalar inflation field expanded by 47 orders of magnitude, then began cooling adiabatically into a quark-gluon plasma"?? Even to the most secular scholar, the Torah is a brilliant study in human nature and emotion. To understand it, we must read it in its own language, not ours. As many medieval commentators point out, the purpose of Genesis is to teach us moral lessons, and at most, political history, not science.
There are a number of answers to this question:
When science says "the world is 13,000,000,000 years old", they are not saying "I was there. I have a video. I KNOW". They say "based on the evidence that I have, and based on the laws of nature that I observe, the world could have been created like this.
Or maybe not. Maybe there are other scientific laws involved that we just don't know about. We don't know everything yet, and it's possible all of our theories wouldn't work under different conditions. Remember, in the Rambam's time, everyone was convinced that the science of his day was absolutely true, to the extent that we had to "show" how we agree to science.
Or one can add, even if you say that from the Big Bang on everything was natural, the original yesh mi-ayin, the something from nothing, must have been supernatural. If creation is supernatural, there is no reason to stop the supernatural involment by the Big Bang, why not extend it to the end of creation. It says that when Hashem created the world, it was created fully formed. Meaning, Adam was an adult. If he would come to a doctor and ask "how old am I?" the doctor would say "middle aged". Was he or not?
In other words, it's not a scientific question, as it deals with "did Hashem perform this miracle or that miracle".
Many would answer: "Ahh... But it's a much smaller miracle for Hashem to create a "Big Bang" than create a world. Why make miracles bigger than they are?"
The answer to that this is not a scientific argument. Why Hashem makes a bigger miracle instead of a smaller isn't a scientific question. Maybe philosophical, but not scientific.
So in the end, there is no scientific evidence of the age of the universe. Philosophically one may find it hard to believe why Hashem would create the world looking old, but there are no questions based on science.
The Seder Olam Rabbah added up all of the generations in the Torah and those in the rest of Biblical history to determine how many years had passed since the Creation of Adam. By that reckoning, 5770 years have now elapsed since that Creation. Genesis 1 describes Six Days between the initial Creation of "the Heavens and the Earth" and the Creation of Adam. If you add six days to 5770 years, you get an elapsed time from the Creation of the Universe to now of 5770 years.
Many different and unrelated scientific inquiries have produced evidence consistent with the Earth and the Universe being orders of magnitude older than 5770 years. In The Challenge of Creation, Chapter Nine: "Evidence for an Ancient Universe," R' Natan Slifkin accessibly summarizes some of the these methods, including analysis of fossils, tree rings, and geological features.
To your point, he describes the evidence for a Universe age on the order of 10 billion years that comes from telescope observations of galaxies that are 10 billion light-years away. The presence of light from a source that far away implies that the light had been travelling for 10 billion years before it reached us, which implies that the galaxy it came from and the Universe containing it are at least that old.
A great deal of ink has been spilled trying to deal with this apparent disagreement between Scriptural and scientific evidence. The following few chapters of The Challenge of Creation describe a number of approaches to this issue as well as the author's approach.
Rabbi Aryeh Kaplan has shown that the tradition of the age of the world is not a simple subject.
Let's stick to Jewish sources only and ignore any other source.
We have two dating systems.
One is based on the Seder Halam, that which gives us the current calendar year. According to this view, Adam Harishon was kicked out of the garden of eden 5771 years ago.
We have the world dating system, based on the Gemora and the Kabblah. This system gives us many different possible answers for the age of the world, which I will get into later
Now, according to the gemorah, option 1 will not tell us the age of the world. It will only tell how long humanity as descendand from Adam has been around. The gemorah tells us that we can not know or study what came before, what is above, what is below, and what will come in the future. As far back as we can know, is how long we as people knowing Gd have been around, and that is all we are allowed to know.
However, the gemorah says that some people, teacher to student can teach each other otherwise, and we have many cryptic statements in the Gemorah regarding the age of the world. One such statement is that the world was created 974 generation before the giving of the Torah. (Or 947 generations before Adam was created) Depending on if you use a generation as defined between Adam and Noach, or between Noach's son's and Avraham, or between Avraham and Moshe, you will get a different calculation on how many years the world existed before Adam. (anywhere from 18,940 years to 177,089 years)
According to another view of the Kabbalists and Ramban:
Ramban Shmos 21:2 Also discussing shmita, and the significance of seven cycles, he says: And the seventh was chosen for days, for years, and for shmita but it all relates to another matter and this is the secret of the age of the universe (sod y'mos ha'olam)
Rabbi Aryeh Kaplan expounds this further based on the writings of Rabbi Isaac of Acco.
According to the master Kabbalist, Rabbi Isaac of Acco, when counting the years of these cycles, one must not use an ordinary physical year, but rather, a divine year (Otzar Chaim 86b). The Midrash says that each divine day is a thousand years, basing this on the verse, "A thousand years in Your sight are as but yesterday", Psalm 90:4 (Bereshit Rabbah 8:2, Zohar 2: 145b, Sanhedrin 97a). Since each year contains 365.25 days, a divine year would be 365,250 years long. According to this, each cycle of seven thousand divine years would consist of 2,556,750,000 earthly years. This figure of 2.5 billion years is very close to the scientific estimate as to the length of time that life has existed on earth. If we assume that the seventh cycle began with the Biblical account of creation, then this would have occurred when the universe was 15,340,500,000 years old. This is very close to the scientific estimate that the expansion of the universe began some 15 billion years ago." - Taken from Sefer Yetzirah, commentary by Rabbi Aryeh Kaplan, published by Weiser- 1997, page 186.
The concept of the world being some 6,000 years old comes from Christianity, and Priests. These sentiments, for some reason unknown by anybody, have been adopted by modern day Charedim as the 'Torah True' view... despite the fact that nobody has ever suggested that the world is only 6,000 years old until some Christian priest decided to make that claim despite the scientific findings of Darwin and early Paelontology. The Tiferes Yisroel wrote:
In the year 1807... they found in Siberia... a great elephant... whose skelteon now stands in the Zoological Museum in Petersburg... We already know of a giant creature found in... the city of Baltimore... bones of this creature have been found in Europe, too. This creature had been named mammoth... they have found... iguanodon... whose height was 15 feet, and whose length was as much as 90 feet...there is yet another creature called megalosaurus... from all this it is clear... [citing kabbbalists, Gemarahs, RAbaynu B'chaya, the Ramban, and Ibn Ezra's] that the world has been destroyed and renewed over and over again as many as four times --- Drush Ohr Hachayim, Tiferes Yisroel (Rav Yisroel Lipschutz)
In 1857 Philip Henry Gosse (A Non Jew who had no Jewish sources) was the first person to ever suggest that the world was close to 6,000 years old! He made this suggestion in his book Omphalos: an Attempt to Untie the Geological Knot. And now, that Christian book, is somehow touted as 'Torah!' You'd have to ignore at least 6 Gemoras, half the rishonim, a few achronim and your own eyes to say the world is less than 10,000 years old!
To summarize: A debate exists regarding the age of the world, because it is something which we can not know, and are instructed that it is not worth knowing. Despite this, we have many different Agadatas which give us a large variety of options for the age of the world. On top of that, we have a strong influence from Christian scholars convincing certain sects of Judaism, that a literal reading of both Seder Olam and the chumash is the only true answer to the question (despite the Torah Sh'baal peh which tells us otherwise!)
The lubovitcher rebbe would answer people when they would ask this question 1) science is constantly changing and what they say now may be disproven in 5 years from now so don't be so sure. But more importantly 2) Hashem created an "old world" trees fully formed, fossils already fossilized, Adam as an adult. So Hashem created the world as if it was billions of years old
Comparing the traditional Jewish age of the universe with the scientific age of the universe is like comparing apples and oranges.
To explain, let's start with a question: What makes our universe real, as compared to a universe described in a science fiction fantasy novel?
To answer, we can draw a distinction that our universe is real because it is observable, as opposed to a sci-fi universe that, although we can conceptualize it, we cannot observe it in any way. Granted, it is possible that the sci-fi universe exists somewhere and is observable by the inhabitants of that universe, in which case, it would too be real. However, if there is no being that is able to observe any effect of its existence than indeed we can define it as not real/ not existing.
(The concept of an "unobserved real" is a, possibly semantic, topic of interest debated by philosophers, however, for our purposes, from the perspective of a Creator creating the world we can define existence based on observability.)
If so, when we picture our universe during the 13 billion years or so while stars were forming and the universe was cooling, there was no observer and therefore it was just as real as a sci-fi novel universe.
To this, you may, correctly, respond and say: But we can observe the universe and the effects of what went on during those 13 billion years (background radiation, galactic structure, fossils) and therefore it is real. This is correct, however, when did it become real? Only when it was first able to be observed.
So, when did the universe first become able to be observed? With the existence of conscious beings. There is by no means any scientific consensus on the question of when conscious beings came into existence or the harder question of how it is possible for conscious beings to develop from a non-conscious universe.
To this, Judaism maintains the tradition that the first conscious beings capable of observing the universe came into existence 5779 years ago. Only then, did the entire 13 billion years of universe come into existence.
When scientists say that the universe is 13 billion years old, they mean: If there was an observer observing the universe from the beginning, 13 billion years would have elapsed until today. Although this number may or may not be useful in conceptualizing certain aspects our universe today it ignores the fundamental problem of existence without observation, as well the fact that time itself is poorly defined without consciousness.
The question that remains is what, then were the six days of creation? יש לישב
God told us in the torah He would send us false prophets performing signs and wonders telling us to leave the torah.
If there will arise among you a prophet, or a dreamer of a dream, and he gives you a sign or a wonder. and the sign or the wonder of which he spoke to you happens, [and he] says, "Let us go after other gods which you have not known, and let us worship them" you shall not heed the words of that prophet, or that dreamer of a dream; for the Lord, your God, is testing you, to know whether you really love the Lord, your God, with all your heart and with all your soul.
So one could say perhaps the scientific evidence pointing to the torah's account as being false is simply a test. God already told us in the torah He would test us and He certainly has the ability to make the universe look older than it is. One who knows and believes the torah is true, will give its account more weight than the conclusions of scientists which is based on circumstancial evidence and naturalistic assumptions.
hence maybe the torah's account is literal and the universe is <6000 years old looking much older or maybe it is not literal and the universe is billions of years old. teyku.
It is interesting that two unrelated discussions crop up wrt this question, the age of the universe and evolution.
Dating the age of the universe is scientifically sound and well supported, evolution is neither.
So from a scientific viewpoint we are faced with a Big Bang universe in which life magically appears on planet Earth.
Which leads to a suspicion that whichever magician created life may have prepared the setting for life previously.