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Thread: Age of Universe ?

  1. #1 Age of Universe ? 
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    What is the age of universe and how it is calculated ? Please also mention how the distance of stars and galaxies are calculated .


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    Moderator Moderator Cogito Ergo Sum's Avatar
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    Here you go:

    http://map.gsfc.nasa.gov/universe/uni_age.html
    Distance in space?
    HowStuffWorks "How are astronomers able to measure how far away a star is?"
    http://www.scientificamerican.com/ar...onomers-measur


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    ~ Arthur Schopenhauer, The Art of Being Right: 38 Ways to Win an Argument (1831), Stratagem XXXVIII.
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  4. #3  
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    Thanks Buddy
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  5. #4  
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    Thanks buddy but the age of universe part ?
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    Moderator Moderator Cogito Ergo Sum's Avatar
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    Quote Originally Posted by saurabhkumarsingh View Post
    Thanks buddy but the age of universe part ?

    From the first link (last paragraph):
    "Measurements by the WMAP satellite can help determine the age of the universe. The detailed structure of the cosmic microwave background fluctuations depends on the current density of the universe, the composition of the universe and its expansion rate. As of 2013, WMAP determined these parameters with an accuracy of better than than 1.5%. In turn, knowing the composition with this precision, we can estimate the age of the universe to about 0.4%: 13.77 ± 0.059 billion years!"
    "The only safe rule is to dispute only with those of your acquaintance of whom you know that they possess sufficient intelligence and self-respect not to advance absurdities; to appeal to reason and not to authority, and to listen to reason and yield to it; and, finally, to be willing to accept reason even from an opponent, and to be just enough to bear being proved to be in the wrong."

    ~ Arthur Schopenhauer, The Art of Being Right: 38 Ways to Win an Argument (1831), Stratagem XXXVIII.
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