Across
- 1. A continuous area or expanse that is (Used to describe everything)
- 3. The force that pulls objects towards each other
- 4. A body moving in an elliptical orbit around a star
- 5. An expert in or student of astronomy
- 9. The planet closest to the sun
- 10. The curved path of an object around a star
- 11. A huge body of gas creating light and heat
- 12. The dwarf planet that used to be known as being a planet
- 14. The red planet
- 16. Unit for force
- 17. A very large cloud of dust and gas that exists in outer space
Down
- 1. A body in orbit around a planet or moon
- 2. A spacecraft designed to land on the surface of a planet or moon
- 5. A mass of rock that moves around in space
- 6. An instrument designed to make objects nearer
- 7. A spacecraft designed to go into orbit
- 8. The emission of energy as electromagnetic waves or as moving subatomic particles
- 13. A system of millions or billions of stars
- 15. A natural Satellite around any planet
- 18. The planet on which we live