Across
- 2. Relating to the Moon
- 7. a person who is trained to travel in a spacecraft
- 10. A large object such as Jupiter or Earth that orbits a star
- 11. The path of an object around a particular point in space
- 12. The envelope of gasses surrounding the earth or another planet
Down
- 1. The National Aeronautics and Space Administration
- 3. An object’s orbital motion around another object (Earth revolves around the sun)
- 4. Relating to the Sun
- 5. An object’s spinning motion around its own axis (Earth spins on its axis)
- 6. All of space and time and their contents (planet, stars, galaxies, matter, energy)
- 8. The force of attraction that pulls together all matter. The more matter something has, the greater the force of its gravity.
- 9. A HUGE collection of gas, dust, billions of stars, and their solar systems.