Space

2. An optical instrument used for viewing distant objects in space.
3. The curved path followed by an object around a star, planet, or other celestial body.
4. A vehicle designed for space travel.
9. Relating to the Moon or the moon's surface.
11. A scientist who studies and observes celestial objects and phenomena.
14. The force that attracts objects toward each other, keeping them in orbit.
15. A celestial object composed of ice, dust, and gas that orbits the Sun.
16. A small celestial body that enters the Earth's atmosphere and burns up, appearing as a "shooting star."

1. A person who travels and works in space.
5. System A system consisting of a star (Sun) and the planets that orbit it.
6. A large celestial body that orbits around a star.
7. A massive system of stars, gas, dust, and other celestial objects.
8. An object that orbits around a planet or other celestial body.
10. All of space and everything in it, including planets, stars, galaxies, and other celestial objects.
12. A vehicle or device that is propelled through space by rocket engines.
13. A luminous ball of hot gas that shines in the night sky.