Why do we explore space?

2. This word means a long journey, especially one taken through space. Astronauts embark on such journeys to explore and learn about distant places.
4. A person who studies the stars, planets, galaxies, and other celestial bodies in the universe.
7. The motion of an object, like a satellite or a planet, as it revolves around another object in space, usually a star.
8. The action of sending a spacecraft or other vehicle into space.
11. A special task or assignment, especially one involving space travel, exploration, or research.
13. Refers to the space between stars in a galaxy.
14. These are like invisible ripples that travel through space, carrying energy. They can be light or radio signals and are used by astronomers to learn about the universe.

1. A vehicle designed for travel or operation in outer space. Can be manned (with humans) or unmanned (without humans).
3. A scientist who studies the physical properties and interactions of celestial objects like stars, planets, and galaxies.
5. An object that orbits a larger celestial body (like a planet) in space. Can be natural (moon) or artificial (man-made).
6. This is the act of traveling to new or unfamiliar places to learn about them. In space, it involves sending spacecraft to study planets, moons, and other celestial bodies.
9. Describes a spacecraft or vehicle that operates without humans on board.
10. To create a model or imitation of a real situation to understand how it works. Often used in space exploration to predict outcomes.
12. Information collected from observations or experiments, often used to analyze and draw conclusions.