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Author Question: Contrast observation of ionized and neutral hydrogen in space. What will be an ideal ... (Read 132 times)

Zoey63294

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on: Jul 27, 2018
Contrast observation of ionized and neutral hydrogen in space.
 
  What will be an ideal response?

Question 2

The Allen Telescope Array is one of the many radio searches for extraterrestrial life.
 
  Indicate whether the statement is true or false


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Silverbeard98

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

Emission nebula glow bright red from the ionized hydrogen around hot young stars, but most of the hydrogen is cooler, neutral, and transparent; it can best be mapped from its 21-cm radio emission instead.

Answer to Question 2

TRUE


Zoey63294

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Reply #2 on: Jul 27, 2018
Thanks


Silverbeard98

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


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