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Author Question: Saturn's rings appear to be brighter and younger than the dirty, dark rings around Uranus and ... (Read 179 times)

RYAN BANYAN

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on: Jul 27, 2018
Saturn's rings appear to be brighter and younger than the dirty, dark rings around Uranus and Neptune.
 
  Indicate whether the statement is true or false

Question 2

How do astronomers create three-dimensional maps of the universe?
 
  A) through the comparison of computer models of galaxy formation with observations
  B) by using a galaxy's position on the sky and its redshift to determine its distance along the line of sight
  C) by carefully measuring the parallax of each galaxy
  D) by interpreting the peculiar velocities of each galaxy
  E) by using a galaxy's position on the sky and its brightness as a measure of distance along the line of sight


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komodo7

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

TRUE

Answer to Question 2

B


RYAN BANYAN

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Reply 2 on: Jul 27, 2018
Gracias!

nanny

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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