the universe

4. it is the totality of forms of matter, energy, space-time and physical laws that govern them.
7. it is the planetary system that gravitationally binds a set of astronomical objects
9. is a person who leaves Earth and goes into space
13. It is a celestial body made up of dust, rocks and ice particles.
15. they are regions of the interstellar medium made up of gases as well as chemical elements in the form of cosmic dust.
17. celestial body that shines with its own light in the sky.
19. conventional star grouping.
20. is the gas shell of a celestial body.

1. newborn galaxy or that source of energy that occurs in the black hole at the center of these newborn galaxies
2. It is the only natural satellite of the Earth
3. it is an astronomical object orbiting a star that is massive enough to be rounded by its own gravity
5. Big Bang at the beginning of the universe
6. It is the depression left by the impact of a meteorite on the surface.
8. is the fourth planet from the sun
10. s the star in the middle of our solar system.
11. It is a rocky celestial body, smaller than a planet and larger than a meteoroid.
12. no particle—not even light—can escape from it.
14. The galaxy we live in is called
16. it is a unit of length used to measure astronomical distances
18. it is a phenomenon in which light from one celestial body is blocked by another body.