how do you determine the age of the universe?
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- 1 light-year = the distance light travels in one year. If an object is 14 billion light-years away the universe must be at least 14 billion years old for the light to get to earth. Oh, also by estimating the amount of hydrogen that has been converted by stars into other heavier elements, etc.
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- At the same time, there are many others who believe that scientific evidence overwhelmingly supports the claim that the Earth is about 4.6 billion years old, while the Universe as a whole is 10 to 20 billion years old.
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How can it be understood that the universe is 93 billion light years across and yet only 13.8 billion years old? There is a scale factor for the universe that is a function of time, [math]a(t)[/math]. [math]\frac{a(t_{NOW})}{a(t_{CMB})}=z+1[/math]. Which means that the diameter of those bumps that would become our CMB image would be 93 billion light years/1101 which is 84.5 million light years in diameter.
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What is the true age of the earth? What is the true age of the earth? Many Earth clocks indicate recent creation. Measuring the rate at which worldwide processes function provides a clock by which the age of the earth may be calculated. Many of these processes yield thousands of years, rather than billions.
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- By comparing the ratios of sand to earth ( 2mm / 6360km ) and the new universe size to current size ( X / 46.6109 light years ) we can set up the equation ( 2mm / 6360km ) = ( X / 46.6109 light years ) and solve for X, obviously units were then converted for this to work out.
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StarChild Question of the Month for December 2000 How old is the universe? We do not know the exact age of the universe, but we believe that it is around 13 billion years - give or take a few billion. Astronomers estimate the age of the universe in two ways: (a) by looking for the oldest stars; and (b) by measuring the rate of expansion of the universe and extrapolating back to the Big Bang.
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Age of the Universe But this is just the mean formation age of the stuff in the Solar System, and no rhenium or osmium has been made for the last 4.56 billion years. Thus to use this age to determine the age of the Universe, a model of when the elements were made is needed.
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No Big Bang? Quantum equation predicts universe has no beginning True History of the Universe & Planet Earth. According to reliable information from spiritually and technologically advanced human extraterrestrials, the age of our Universe is 46 trillion years, which you can see is a much older age than the 8-14 billion years that Earth scientists give it.
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How Old is the Universe? The leftover radiation is known as the cosmic microwave background, and both WMAP and Planck have mapped it. In 2012, WMAP estimated the age of the universe to be 13.772 billion years, with an uncertainty of 59 million years. In 2013, Planck measured the age of the universe at 13.82 billion years.
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How do scientists determine the ages of stars? Is the technique really accurate enough to use it to verify the age of the universe? In a star cluster, we have the advantage that stars of all masses formed at about the same time. So all we have to do is look at the cluster and determine how hot and how massive is the hottest, bluest, most massive star that has not yet entered the late, unstable period of its life.
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Age of the Universe The Age of the Elements. The age of the chemical elements can be estimated using radioactive decay to determine how old a given mixture of atoms is. The most definite ages that can be determined this way are ages since the solidification of rock samples.
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How do we know the age of the earth? And the age of the solar system? The Earth is 4,54 billion years old. This age has been determined with the radioactive dating technique. The precise decay rate of radioactive elements is used as a clock: the number of daughter products in one rock indicates its age.ating meteorites thus allows us to give a lower age to the Solar System (4,56 billion years old). Lead isotope isochron that Clair Patterson used to determine the age of the solar system and Earth (Patterson, C., 1956, Age of meteorites and the earth: Geochimica et Cosmochimica Acta 10: 230-237).
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How Old is the Universe? By Nola Taylor Redd, SPACE.com Contributor | December 20, 2013 06:21pm ET. A 2013 map of the background radiation left over from the Big Bang, taken by the ESA's Planck spacecraft, captured the oldest light in the universe. This information helps astronomers determine the age of the universe.
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How are the ages of the Earth and universe calculated? Astronomers and geologists have determined that the universe and Earth are billions of years old. This conclusion is not based on just one measurement or one calculation, but on many types of evidence.
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How Old is the Universe? Astronomers estimate the age of the universe in two ways: 1) by looking for the oldest stars; and 2) by measuring the rate of expansion of the universe and extrapolating back to the Big Bang; just as crime detectives can trace the origin of a bullet from the holes in a wall.
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Age of the Earth In 1895, John Perry produced an age-of-Earth estimate of 2 to 3 billion years using a model of a convective mantle and thin crust. Kelvin stuck by his estimate of 100 million years, and later reduced it to about 20 million years.
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- The best available information indicates that the age of the universe is 13.7 billion years. Hubble has helped to measure the age of the universe using two different methods. The first method involves measuring the speeds and distances of galaxies. Because all of the galaxies in the universe are generally moving apart, we infer that they must all have been much closer together sometime in the past.
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How are the ages of the Earth and universe calculated? One way to measure these ages is with the travel time of light. Light travels incredibly fast – 300,000 kilometers per second, or 186,000 miles per second. On Earth, the delay due to light travel time is a tiny fraction of a second.
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The Universe Is 13.82 Billion Years Old The age of the Universe is a little bit higher than we expected. A few years ago, the WMAP spacecraft looked at the Universe much as Planck has, and for the time got the best determination of the cosmic age: 13.73 +/- 0.12 billion years old. Planck has found that the Universe is nearly 100 million years older than that: 13.82 billion years.
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What do you do to find the absolute age of a rock? Answer by RobertGrebl. Confidence votes 452. To find the absolute age of a given rock, you look at radioactive decay. This involves a radioactive isotope. *Remember that an isotope, essentially, forms of chemical elements that differ in the number of neutrons.If the isotope is radioactive, it will evolve into a decay product.This evolution, or, rather, decay, is predicatable and can be used to determine how old the given rock is.n looking at the decay-product ratio-- that is, the ratio between the mass of a radioactive element and its decay product-- we can calculate the number of half-lives the rock sample has had since it was formed. An example would be if a decay product is 50%, then it has been through exactly 1 half-life.
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- In 1897, Lord Kelvin assumed that the Earth was originally molten and calculated a date based on cooling through conduction and radiation. The age of Earth was calculated to be about 24-40 million years based on the laws of thermodynamics.
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- The Universe is all of space and time and its contents, which includes planets, moons, stars, galaxies, the contents of intergalactic space and all matter and energy. While the size of the entire Universe is still unknown, it is possible to measure the observable universe. The earliest scientific models of the Universe were developed by ancient Greek and Indian philosophers and were geocentric, placing Earth at the centre of the Universe. Over the centuries, more precise astronomical observation
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The Farthest Visible Reaches of Space Scientists have estimated the age of the Universe to be 13.73 billion years old (with an uncertainty of about 120 million years). When we observe an object that is 13 billion light years away, we are essentially observing it as it was 13 billion years ago, when the Universe was young.
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- There are (at least) two problems with this panspermia story. First, the universe apparently does have a beginning (called the Big Bang), and this beginning is definitely not far back (about 16 billion years, only four times the age of the Earth). This cuts out infinity as a means to boost probability.
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What is Property? An Inquiry into the Principle of Right and of Government For the sake of brevity, some of the details about measuring very far away stars and galaxies have been omitted. For instance, at a certain point astronomers must include the expansion of the Universe into their calculations of distances. However, this discussion of the techniques used by astronomers to determine distances should give you a general idea of how such measurements are possible.
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- 1 The Universe is 13.82 billion years old. 2  The Universe is expanding a bit slower than we expected. 3  The Universe is 4.9 percent normal matter, 26.8 percent dark matter, and 68.3 percent dark energy.  The Universe is lopsided. Just a bit, just a hint, but that has profound implications.