Space

4. A system of billions of stars, along with gas, dust, and dark matter, held together by gravity. Our Milky Way is a galaxy.
5. A celestial object made of ice, dust, and rock. When a comet gets close to the sun, it develops a glowing coma and tail.
6. The star at the center of our solar system. It provides light and heat to the planets, including Earth.
9. A person who travels and works in space. Astronauts wear special suits and conduct experiments on spacecraft.
10. A small piece of rock or metal that enters the Earth's atmosphere.
11. A giant ball of hot gas that emits light and heat. Stars are visible in the night sky and form constellations.
12. The curved path followed by an object, such as a planet or satellite, as it revolves around another object due to gravity.

1. An object that orbits around a planet or star. Satellites are used for communication, weather observation, and navigation.
2. A large celestial body that orbits around a star. Examples include Earth, Mars, Jupiter, and Saturn.
3. A vehicle that launches into space by expelling gas from its engines. It carries astronauts and satellites into orbit.
6. A vehicle designed for space travel.
7. The natural satellite that orbits around the Earth. It reflects sunlight and has phases, such as full moon and crescent moon.
8. An area in space with extremely strong gravity. Nothing, not even light, can escape its gravitational pull.