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CCI02.07.01.- Why can't we see evidence of alien life?

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https://youtu.be/I2apGYUX7Q0
PEDRO ÁLVAREZ JIMÉNEZ
Quiz by PEDRO ÁLVAREZ JIMÉNEZ, updated more than 1 year ago
PEDRO ÁLVAREZ JIMÉNEZ
Created by PEDRO ÁLVAREZ JIMÉNEZ over 6 years ago
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Resource summary

Question 1

Question
What has NASA's Kepler Mission discovered?
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Answer
  • Other carbon-based life forms in our galaxy
  • Unusual radio signals from other galaxies
  • Planets around nearby stars within our galaxy

Question 2

Question
According to Anderson, if we extrapolate the Kepler data, how many life-supporting planets could there be in our galaxy?
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Answer
  • Two dozen
  • Fifty million
  • Hundreds

Question 3

Question
In 1950, Enrico Fermi asked
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Answer
  • How can we be certain that extraterrestrials haven’t already colonized Earth at some point in its history?
  • What do we mean by “intelligent life”?
  • Where is everybody?

Question 4

Question
Anderson says that possible answers to Fermi’s question include
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Answer
  • Aliens have existed, but they destroyed themselves before we came on the scene
  • We’re not looking hard enough
  • They’re communicating in ways we can’t currently detect

Question 5

Question
SETI recently made its data public in order to:
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Answer
  • Increase tourism revenue in various UFO hotspots
  • Engage citizen scientists to help with its work
  • Demonstrate its credibility to detractors
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