space

3. System A system consisting of a star (the Sun) and the celestial objects that orbit around it, including planets, moons, asteroids, and comets.
6. A cloud of gas and dust in space. Nebulas are often the birthplaces of stars and can have beautiful, colorful shapes and patterns.
9. A term used in some countries for an astronaut or a person who travels and works in space. It is commonly used in Russian-speaking countries.
10. A celestial object made up of ice, dust, and gas that orbits the Sun. When a comet gets close to the Sun, it develops a glowing coma and a tail.
11. A small rock or particle in space. When a meteoroid enters Earth's atmosphere and burns up, it is called a meteor.

1. An object that orbits around a planet or a star. Satellites are used for communication, weather observation, navigation, and scientific research.
2. A large celestial body that orbits around a star. Planets are round and do not produce their own light but reflect the light of the star they orbit.
4. Hole A region in space with extremely strong gravity that nothing, not even light, can escape from. Black holes form when massive stars collapse.
5. A massive collection of stars, dust, and gas held together by gravity. Galaxies can be spiral, elliptical, or irregular in shape.
7. A scientist who studies celestial objects such as stars, planets, galaxies, and other phenomena in the universe.
8. A vehicle that is propelled by engines and carries spacecraft into space. Rockets provide the necessary thrust to overcome Earth's gravity.
12. The curved path followed by an object, such as a planet or a satellite, as it revolves around another object, usually a star.