Astronomy

5. The blocking or obscuring of one celestial body by another, such as the Sun being obscured by the Moon during a solar eclipse.
6. The entirety of space, including all matter, energy, and the physical laws and constants that govern them.
9. A massive ball of hot gas that emits light and other forms of electromagnetic radiation, powered by nuclear fusion in its core.
11. A natural or artificial object that orbits around a larger celestial body, such as a planet or a moon orbiting around a planet.
12. A facility equipped with telescopes and other instruments for observing celestial objects and conducting astronomical research.
14. A celestial object composed of ice, dust, and gas that orbits the Sun and develops a glowing coma and sometimes a tail as it approaches the Sun.
15. A vast system of stars, gas, and dust held together by gravitational forces, often containing billions or even trillions of stars.

1. A small particle or object that enters the Earth's atmosphere from outer space, often burning up and creating a streak of light.
2. A group of stars that appear to form a pattern or shape when viewed from Earth, often named after mythological figures or animals.
3. A person who travels in space, often aboard a spacecraft, to conduct scientific research or exploration beyond Earth's atmosphere.
4. An optical instrument used to observe distant objects in the sky, allowing astronomers to see celestial bodies more clearly.
7. The system that includes the Sun and all the celestial bodies, such as planets, moons, asteroids, and comets, that orbit around it.
8. A large object that orbits around a star, such as the Sun, and does not produce its own light but reflects light from the star.
10. The force that attracts objects toward each other, especially the force that pulls objects toward the center of the Earth.
13. A cloud of gas and dust in outer space, often illuminated by nearby stars, where new stars can form.