Across
- 3. First American astronaut program.
- 5. Spacecraft that touches down.
- 9. Powerful Moon rocket.
- 10. Reusable space vehicle.
Down
- 1. Moon landing program.
- 2. Prepared astronauts for Apollo.
- 4. Mars exploration rover.
- 6. Explored outer planets.
- 7. First artificial satellite.
- 8. Carried first human.