Cosmic Survey: What are your ideas about the Universe?

Question 1: How old?

You have been provided with images of seven different objects in space. Try arranging the pictures side by side in a row, in order of age, beginning with the youngest (most recently formed) object, and moving in order to the oldest. Write down and keep track of questions that arise as you order the images.

When you are satisfied that you have the best order, record the names of the objects in the spaces below.


1. 2. 3. 4. 5. 6. 7.
Youngest (Most Recently Formed) Oldest

The Universe! Education Forum is sponsored by NASA's Office of Space Science
Copyright 1999 Smithsonian Institution