Across
- 3. When the moon becomes gradually more visible.
- 5. A push or pull on an object when it interacts with another.
- 8. When the moon becomes gradually less visible.
- 9. The force that pulls objects towards each other.
Down
- 1. Our galaxy that contains over 200 billion stars.
- 2. A person trained to travel in a spacecraft.
- 4. Small, rocky objects that orbit the Sun
- 6. A cavity in the ground of a celestial object, typically caused by explosions or meteor impact.
- 7. The star that objects in our solar system orbit.