Across
- 3. what was the name of the first dog which went to space?
- 6. What is the name of the smallest constellation?
- 8. which is the sphere of colour?
- 9. what is another name for the corona?
- 10. In the red giant stage, the sun expands how many times of its original size?
- 11. who went to the moon along with Neil Armstrong?
- 12. which is the biggest satellite of Saturn?
Down
- 1. Which satellite has cold volcanoes?
- 2. what are planetoids also known as?
- 4. Around how many years ago did astronomers observe a red spot on the surface on Jupiter?
- 5. How long does it take for the light rays of the sun take to reach the earth (in minutes)?
- 7. Which star is the second closest to the Earth?