space 4

4. Related to things that come from outside Earth.
8. A planet that orbits a star outside our solar system.
10. The planet we live on, the third from the sun.
12. The largest planet in our solar system.
15. moon The phase of the moon when its whole face is lit and visible.
16. A large group of stars, dust, and gas held together by gravity.
17. Between or involving stars.
19. round To revolve or circulate around something.
20. matter A type of invisible matter believed to make up most of the universe.
21. Between or involving different galaxies.
23. around To move in a circle or orbit around something.

1. The counting of numbers backward to zero before a launch or event.
2. The moon phase when half of the moon is lit and visible.
3. The curved shape of the moon when it is less than half full.
5. When one celestial body blocks the light of another.
6. Between or relating to planets.
7. A layer of Earth’s atmosphere filled with charged particles.
9. A being from outside Earth.
11. A theoretical space allowing faster-than-light travel in science fiction.
13. The force that pulls objects toward each other.
14. saucer A round-shaped UFO, often linked with alien stories.
15. star A bright streak of light from a meteor burning in the sky.
18. To join a spacecraft with another object or station in space.
22. down To set or disappear below the horizon, like the sun.