Astronomy Cross Word

2. Planets travel around the sun in what shape?
4. An enormously bright, distant galaxy with a giant black hole at its center.
7. Change in the shape of the moon.
9. When the Moon is more than half full.
12. Our galaxy
13. The observation that the farther away a galaxy is, the faster it is moving away.
14. The tendency of an object to resist any change in its motion.
15. The distance that light travels in one year
16. A model of the universe in which Earth is at the center of the revolving planets and stars.
18. The lowest possible temperature
19. One of the small asteroid-like bodies that formed the building blocks of the planets.
22. The initial explosion that resulted in the formation and expansion of the universe.
23. An object in space that revolves around a star.
24. The most visible planet we see at night.
25. A huge group of single stars, star systems, star clusters, dust, and gas bound together by gravity.

1. The force that pulls objects toward each other.
3. When the moon’s shadow falls upon Earth.
5. The movement of an object around another object.
6. Matter that does not give off electromagnetic radiation
8. All of space and everything in it.
10. The spinning motion of a planet on its axis.
11. A model of the solar system in which Earth and the other planets revolve around the sun.
17. The apparent change in position of an object when seen from different places.
20. The study of the moon, stars, and other objects in space.
21. The star that provides light for the Earth