Across
- 2. a force that pulls things toward one another
- 4. a special achievement, success, accomplishment, or victory
- 6. a push or pull on an object or system
- 8. an object or area in space that has such a strong gravity that not even light beams can escape it
- 9. a person who travels into outer space
Down
- 1. the stuff everything in the universe is made of; anything that takes up space
- 3. a vehicle designed to travel into space for research and exploration
- 5. to send a rocket into outer space
- 7. a place used to observe the sun, moon, stars, and outer space
- 10. the regular rise and fall of the surface of large bodies of water on Earth caused by the moon's gravity