Across
- 3. a celestial body moving in a elliptical orbit around a star
- 5. a closed compartment for travel in space
- 6. National Aeronautics and Space Administration
- 7. a space rock that forms a crater on the moon
- 8. the space flight that first landed humans on the moon
Down
- 1. a bowl shaped pit
- 2. the force that attracts the body toward the center of the Earth
- 4. a person who is trained to travel in a space craft
- 6. the first person to walk on the moon
- 7. the fifth largest satellite in the Solar System