Suppose there are l0,000 civilizations broadcasting radio signals in the Milky Way GaIaxy right now. On average, how many stars would we have to search before we would expect to hear a signal? Assume there are 500 billion stars in the galaxy. How would the answer change if there were only 100 civilizations instead of 10,000?
Suppose there are l0,000 civilizations broadcasting radio signals in the Milky Way GaIaxy right now. On average, how many stars would we have to search before we would expect to hear a signal? Assume there are 500 billion stars in the galaxy. How would the answer change if there were only 100 civilizations instead of 10,000?
Chapter17: Astrobiology: Life On Other Worlds
Section: Chapter Questions
Problem 22RQ
Related questions
Question
Suppose there are l0,000 civilizations broadcasting radio signals in the Milky Way GaIaxy right now. On average, how many stars would we have to search before we would expect to hear a signal? Assume there are 500 billion stars in the galaxy. How would the answer change if there were only 100 civilizations instead of 10,000?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Recommended textbooks for you
Stars and Galaxies (MindTap Course List)
Physics
ISBN:
9781337399944
Author:
Michael A. Seeds
Publisher:
Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:
9781337399920
Author:
Michael A. Seeds, Dana Backman
Publisher:
Cengage Learning
Stars and Galaxies (MindTap Course List)
Physics
ISBN:
9781337399944
Author:
Michael A. Seeds
Publisher:
Cengage Learning
Foundations of Astronomy (MindTap Course List)
Physics
ISBN:
9781337399920
Author:
Michael A. Seeds, Dana Backman
Publisher:
Cengage Learning
Astronomy
Physics
ISBN:
9781938168284
Author:
Andrew Fraknoi; David Morrison; Sidney C. Wolff
Publisher:
OpenStax