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