Across
- 2. Explosive event marking the death of a massive star
- 5. The study of celestial bodies and phenomena
- 7. The galaxy containing our solar system
- 8. A cloud of gas and dust in space
- 9. Massive systems of stars, gas, dust, and dark matter
Down
- 1. A region of spacetime where gravity is so strong that nothing can escape
- 2. Luminous celestial objects composed of hot gases
- 3. The celestial bodies that orbit the Sun
- 4. The study of the large-scale structure and dynamics of the universe
- 6. The third planet from the Sun