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Author Question: The astronomical object in our sky which plays the most fundamental role in our lives is the A) ... (Read 86 times)

Yi-Chen

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on: Jul 27, 2018
The astronomical object in our sky which plays the most fundamental role in our lives is the
 
  A) Sun
  B) Moon
  C) nearest star
  D) most massive planet in our solar system, Jupiter

Question 2

Explain why galaxy interactions are far more common than star-star interactions.
 
  What will be an ideal response?


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sultana.d

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

A

Answer to Question 2

Galaxies are much closer together, relative to their size, than stars are. If the Sun were made the size of a grapefruit, the nearest star would be on the other side of the continent. However, if the Milky Way (or any other galaxy) were made the size of a grapefruit, there would likely be another galaxy within a few feet of it. Thus, galaxy interactions are far more common than star-star interactions and must be taken into account when considering galaxy evolution.


Yi-Chen

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Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

tandmlomax84

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Reply 3 on: Yesterday
:D TYSM

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