Based on Counting the Number of Galaxies in a Small

question 149

Multiple Choice

Based on counting the number of galaxies in a small patch of the sky and multiplying by the number of such patches needed to cover the entire sky, the total number of galaxies in the observable universe is estimated to be approximately

• A)100 billion.
• B)10 billion.
• C)100 million.
• D)1 trillion.
• E)1 billion.

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Economic Growth, Regulatory Relief, and Consumer Protection Act

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