Across
- 4. What is the most volcanically active body in our solar system?
- 6. What type of galaxy is the Milky Way galaxy?
- 7. On what planet is the Great Red Spot?
- 8. Centauri Nearest star to Earth
- 9. How much of the universe is in a plasma state?
Down
- 1. The estimated age of the universe is:
- 2. How many comets are there in the solar system?
- 3. Brightest star
- 5. What do scientists use to search for life in distant space?