Fifteen years ago, a quasar was observed that was found to be located 12 billion light years away. If our universe is approximately 15 billion years old, when did the quasar emit the light that we observe? O A. 3 billion years ago B. 12 billion years ago O C. 15 billion years ago D. 15 years ago
Fifteen years ago, a quasar was observed that was found to be located 12 billion light years away. If our universe is approximately 15 billion years old, when did the quasar emit the light that we observe? O A. 3 billion years ago B. 12 billion years ago O C. 15 billion years ago D. 15 years ago
Astronomy
1st Edition
ISBN:9781938168284
Author:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:Andrew Fraknoi; David Morrison; Sidney C. Wolff
Chapter29: The Big Bang
Section: Chapter Questions
Problem 10E: Astronomers have found that there is more helium in the universe than stars could have made in the...
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