Universe is approximately..
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13.75 billion years old
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14.75 billion years old
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13.90 billion years old
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14.00 billion years old
A
Correct answer
Explanation
The age of the universe is approximately 13.75 billion years (13.75 × 10^9 years), based on measurements of the cosmic microwave background radiation and the expansion rate of the universe (Hubble constant). This estimate comes from the Planck satellite mission and other cosmological observations.