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Author Question: The discovery of the cosmic microwave background was important because A) its detection was a ... (Read 12 times)

tuffie

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on: Jul 27, 2018
The discovery of the cosmic microwave background was important because
 
  A) its detection was a major advance in microwave testing.
  B) it was experimental verification of a prediction from the Big Bang theory.
  C) it showed the universe must be closed, with more than the critical density here.
  D) it established a firm center of the universe.
  E) it proved that astronomy at radio wavelengths was possible.

Question 2

What percentage of stars lie on the main sequence? Why?
 
  What will be an ideal response?


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kjo;oj

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Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

About 90 of all stars are still fusing hydrogen to helium in their cores.


tuffie

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

rleezy04

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Reply 3 on: Yesterday
Excellent

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