Astronomy

2. A massive collection of stars, gas, and dust held together by gravity.
7. The path that an object takes as it moves around another object in space.
8. An object that orbits a planet or other celestial body and provides information or communication.
10. A vehicle that is powered by engines and used to travel into space.
11. System The Sun and all the planets, moons, and other objects that orbit around it.
12. A large celestial body that orbits around a star and shines by reflecting light from the star.
13. A bright, glowing ball of gas in outer space that produces its own light and heat.
15. A small celestial body that enters the Earth's atmosphere and burns up, producing a streak of light.

1. An optical instrument used to magnify and view distant objects in the sky.
3. A scientist who studies celestial objects such as stars, planets, and galaxies.
4. All of space and everything in it, including galaxies, stars, planets, and other objects.
5. The natural satellite of the Earth, visible in the night sky as a round, shining object.
6. A cloud of gas and dust in space, often where new stars are formed.
9. A person who travels and works in space.
14. A celestial object composed of ice, dust, and gas that orbits the Sun and develops a tail.