A Pale Blue Dot: The Ultimate Earth "selfie..."
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A Pale Blue Dot was written in 1990 by Carl Sagan in response to a NASA photograph that he requested be taken as Voyager I, in February 1990, was leaving our solar system. Voyager I turned and took the "ultimate Earth selfie" showing Earth as a tiny speck of blue in a vast, scattered light rays. Stop for a moment before beginning the lesson and go to this link to see the actual photo.
4. Sagan wants to portray that we are alone in a wide area. What are some descriptive words he uses?
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TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
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- Video created by Joel Somerfield
- Lesson Plan created by Kim Preshoff
