Question

What is universe?




Explain...





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Answer 1

Answer:

universe is a collection of galaxies.

Explanation:

there are thousands of galaxies in the universe.

Answer 2

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The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy.

• 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 ± 0.021 billion years
• Diameter: Unknown. Diameter of the observable universe: 8.8×1026 m (28.5 Gpc or 93