Space

1. It is a massive system of stars, gas, dust, and other celestial objects held together by gravity.
4. It is a celestial object consisting of a nucleus of ice, dust, and gas that orbits around the Sun, often forming a glowing tail.
6. It refers to the space between stars or the travel between stars.
9. It is a spacecraft designed for human occupancy and travel in outer space.
11. It is a protective garment worn by astronauts in space to provide life support, temperature regulation, and protection from the harsh environment.
12. It is the force that attracts objects toward each other, especially the force that pulls objects toward the center of the Earth.
13. It is a collection of planets, moons, asteroids, and other celestial objects that orbit around a star, typically referring to our own system with the Sun at its center.
15. It is a cloud of gas and dust in outer space, often illuminated by nearby stars, and sometimes serving as the birthplace of new stars.
16. It is a small celestial body that enters the Earth's atmosphere, creating a streak of light known as a shooting star.

2. It is a person who travels and works in space, often trained to operate spacecraft and conduct scientific experiments.
3. It is a vehicle or device that is propelled by engines and used to travel through space.
5. It is an optical instrument used to observe distant objects in space by collecting and focusing light.
7. It is an object that orbits around a planet or celestial body and serves various purposes, such as communication or scientific research.
8. It is a phenomenon in which one celestial body, such as the Moon, passes between another celestial body, such as the Sun, causing a partial or total blocking of light.
10. It is a celestial body that orbits around a star, such as the Sun, and does not produce its own light.
14. It is a luminous celestial object consisting of gas that generates heat and light through nuclear reactions.