Are we alone? With thousands of exoplanets orbiting stars near and far, it's a question that has plagued astronomers for many years. Examine the facts and probabilities in a thought-provoking video. The narrator discusses the search for extraterrestrial life by SETI and proposes the theory that, depending upon the age of the solar system involved, we may be trying to communicate with simple forms of life such as algae.

Concepts

extraterrestrial life, exoplanets, outer space, stars, planets, radio waves, communication

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Additional Tags

science

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Instructional Ideas

• Use the resource to create a great discussion at the end of a space unit
• Invite pupils to journal about their thoughts on the topic, encouraging them to use evidence from what they've learned

Classroom Considerations

• Remind the class of the difference between the actual universe and the observable universe prior to watching the video

• This video is hosted on YouTube

Pros

• The narrator states his opinion on the topic of alien life forms and provides data to support his opinion
• Presents material clearly so students of different ages and levels of learning can enjoy it

Cons

• None