Across
- 2. – "A spectrum of colors seen after rain."
- 4. – "To speak softly without using the vocal cords."
- 8. – "An exciting or unusual experience."
- 11. – "A mountain that erupts with lava and ash."
- 13. – "A cloud of gas and dust in space."
- 15. – "A tall plant with large yellow petals."
- 17. – "A vast collection of stars, planets, and cosmic dust."
- 18. – "Something that is difficult or impossible to understand or explain."
- 20. – "The obscuring of one celestial body by another."
Down
- 1. – "A small waterfall, typically one of several."
- 3. – "A dense forest in a tropical region."
- 5. – "A pleasing arrangement of parts; often related to music."
- 6. – "A long journey involving travel by sea or in space."
- 7. – "A bright yellow or orange flower."
- 9. – "A mythical bird that rises from its ashes."
- 10. – "A sound that is reflected off a surface and heard again."
- 12. – "A fertile spot in a desert where water is found."
- 14. – "The soft glowing light from the sky when the sun is below the horizon."
- 16. – "A complex maze or network of paths."
- 19. – "A musical performance given to honor or express love."