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Is Anybody Out There?

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Is Anybody Out There?

Learners listen to and try to decipher a radio message that was sent from Earth to possible intelligent civilizations. By decoding the message sent from Earth's Arecibo radio telescope in Puerto Rico, and by creating their own messages, learners consider the question "If there is intelligent life in the universe, how could we communicate with it?" and the fact that if there is intelligent life on worlds other than Earth, so far no one has replied to Earth's message. This activity can be found on pages 4-5 of the activity guide.

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
30 to 45 minutes

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 11 - 18

Resource Type:


Materials List (per student)


  • Earth and Space Science
    • Astronomy
  • Engineering and Technology
    • Technology
      • Information and Communication


To use this activity, learners need to:

  • hear

Learning styles supported:

  • Uses STEM to solve real-world problems


This resource is part of:

Access Rights:

  • Free access


Source Collection:

  • Science After School Consumer's Guide


  • All Rights Reserved, TERC, ©2007

Funding Sources:

  • NASA, NAS5-26555
  • National Science Foundation, NSF 9730728


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