Across
- 1. – Biggest planet
- 4. Giant – Big old star
- 5. Giant – Very big star
- 7. Sequence – Main life stage of a star
- 8. – Splitting atoms
- 10. – Tool to see space
- 12. – Energy made in stars
- 13. – Path around something
- 15. Matter – Matter we can’t see
- 17. Star – Super dense star
- 18. – Baby star
- 21. – Distance light travels
- 23. – Star explosion
- 24. Hole – Space object that pulls in everything
- 25. Radiation – Leftover energy from Big Bang
Down
- 2. Shift – Light stretching away
- 3. – Force that pulls things
- 4. – Energy moving through space
- 6. – Spinning star sending signals
- 8. Line – Where ice can form in space
- 9. – Cloud in space
- 11. System – Sun and planets
- 14. – Same element, different mass
- 15. Effect – Change in waves from movement
- 16. – Closest planet to the Sun
- 19. Way – Our galaxy
- 20. Equilibrium – Balance inside a star
- 22. – Huge group of stars
- 23. – Planet with rings
- 26. Bang – How the universe started