Across
- 2. The study of celestial objects, space, and the universe.
- 3. A powerful space telescope launched in 1990.
- 5. An extremely large and bright star.
- 9. The explosion of a massive star at the end of its life cycle.
- 12. A type of galaxy shaped like a flattened sphere.
- 13. The remnant of a massive star after a supernova.
- 14. The star at the center of our solar system.
- 16. A spiral galaxy closest to the Milky Way.
- 18. Related to stars.
- 19. A massive system of stars, gas, and dust held together by gravity
- 20. The spiral galaxy that contains our solar system.
Down
- 1. The primary fuel for nuclear fusion in stars.
- 4. A region of space where gravity is so strong that nothing, not even light, can escape.
- 6. The universe as a whole.
- 7. A galaxy with no specific shape.
- 8. The remnant of a small or medium star after it loses its outer layers.
- 10. A phase in a star’s life when it expands and appears red in color.
- 11. The early stage in the formation of a star.
- 15. The element produced by nuclear fusion in stars.
- 17. A large cloud of gas and dust in space, where stars are born.