Across
- 2. Small body of rock that orbits around our sun.
- 5. A space that does not allow anything to escape from inside it.
- 8. A very small star.
- 9. A large mass of gas and dust in between stars.
- 12. A big body of mass that orbits the sun.
- 13. The action of the centre of a star becomes too dense and collapses. The star then explodes
- 15. all the planets orbiting the sun.
- 17. A gas that is visible at night.
- 19. The opposite of matter, when the two meet they destroy each other
- 20. A large planet that is mostly gas, usually with low density and either helium and hydrogen.
- 21. a planet that orbits a star in another galaxy
- 22. a big area that consists of stars, solar systems, and planets.
- 23. Similar to asteroids, they are bodies of ice and dust that orbit the sun.
Down
- 1. A quasar is a region that creates a lot of radiation
- 3. Similar to a normal planet but is smaller in size. Therefore, it can’t be classified as a planet.
- 4. The earth's natural satellite.
- 6. it orbits around just a larger body, the earth.
- 7. A very large group of stars.
- 10. It has gravity and makes up 95% of the universe along with dark energy.
- 11. A small body of matter that enters our solar system.
- 14. A rotating neutron star.
- 16. When a white dwarf explodes.
- 18. A galaxy that our planet is located in.