Please tell me about universe
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Answer:
The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy. Wikipedia
Mass (ordinary matter): At least 1053 kg
Main contents: Ordinary (baryonic) matter (4.9%); Dark matter (26.8%); Dark energy (68.3%)
Age (within Lambda-CDM model): 13.799 ± 0.02
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Explanation:
Universe is so vast that comprises many complicated things
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