The age of the universe is the time elapsed since the Big Bang. The best current estimate of the age of the universe is 13.75 ± 0.11 billion years (4.339 ± 0.035 ×1017 seconds) within the Lambda-CDM concordance model. The uncertainty of 0.11 billion years has been obtained by the agreement of a number of scientific research projects, such as microwave background radiation measurements by Wilkinson Microwave Anisotropy Probe and other probes. Measurements of the cosmic background radiation give the cooling time of the universe since the Big Bang, and measurements of the expansion rate of the universe can be used to calculate its approximate age by extrapolating backwards in time.
Read more about Age Of The Universe: Explanation, Observational Limits, Cosmological Parameters, WMAP, Assumption of Strong Priors, History
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“Oh, never this whelming east wind swells
But it seems like the sea’s return
To the ancient lands where it left the shells
Before the age of the fern....”
—Robert Frost (1874–1963)
“Everyone in our culture wants to win a prize. Perhaps that is the grand lesson we have taken with us from kindergarten in the age of perversions of Dewey-style education: everyone gets a ribbon, and praise becomes a meaningless narcotic to soothe egoistic distemper.”
—Gerald Early (b. 1952)
“When women reach the age of maturity, Mother Nature sometimes overworks their frustration to the point of irrationalism. Like the middle-aged man...who finds himself looking longingly at a girl in her early twenties.”
—Mark Hanna, and Nathan Hertz. Dr. Von Loeb (Otto Waldis)
“O Lord my God, when I in awesome wonder
consider all the works thy hand hath made,
I see the stars, I hear the mighty thunder,
thy pow’r thro’out the universe displayed.
Then sings my soul, my Saviour God, to thee,
How great thou art!”
—Stuart K. Hine (b. 1899)