1. They tuned their radio to the shuttle liftoff.

2. How many mysteries does our universe hold?

3. My brother likes to read about space heroes.

4. Casey had model rockets on all of his shelves

5. Space telescopes are able to transmit amazing images.

6. Ian packed his astronomy books inbox

7. Mrs. Peck divided the class into half

8. All of the chairmen met at the space summit.

9. Alan has seen three space shuttle launch

10. Ellen searched three libraries for books on quasars.