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Threshold 9: The Future

Threshold 9: The Future (2:32)

Key Ideas

As this video progresses, key ideas will be introduced to invoke discussion.

Key Ideas

Think about the following questions as you watch the video


  1. 00:59 Why do some astrobiologists think that there might be life on billions of other planets in the Universe?
  2. 02:16 What could a possible future threshold be?