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Author Question: In the very first phase after the big bang, when the Universe was about a microsecond old, space was ... (Read 80 times)

RRMR

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on: Jul 27, 2018
In the very first phase after the big bang, when the Universe was about a microsecond old, space was filled with____.
 
  a. high-energy photons
  b. protons and antiprotons
 c. protons, neutrons, electrons, and positrons (anti-electrons)
  d. electrons, and positrons (anti-electrons)
 e. protons, neutrons, electrons

Question 2

When mapping the interior of the Sun, astronomers must measure _____ as the photosphere moves up and down.
 
  a. Doppler shifts
 b. magnetic fields
  c. sunspots
 d. limb darkening
  e. supergranules


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cegalasso

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

a

Answer to Question 2

a


RRMR

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Reply #2 on: Jul 27, 2018
Thanks


cegalasso

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Reply #3 on: Jul 27, 2018
Welcome :)


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