Across
- 1. – Exploding star
- 4. – Measure of distance
- 6. – Icy body glowing near the sun
- 7. – Path of a planet around a star
- 8. – Star at the center of our solar system
- 12. – Collapses under gravity
- 13. – Shooting star
- 14. – Orbits a star
- 15. – Orbits planets or stars
Down
- 2. – Vehicle to reach space
- 3. – Region of small rocky bodies
- 5. – Travels in space
- 9. – Massive system of stars
- 10. – Cloud of gas in space
- 11. – Universe in its entirety
- 13. – Orbits a planet