Project- 2

2. Substances that keep on coming to the earth with different sizes
3. The core region of this planet is made up of ice and silicate rocks
7. A 400km thick bright layer around the sun
10. The planet whose largest moons Titan
11. The planet that forms a binary system with its moon and revolves around their common center mass
12. The planet with its poles covered with dry ice
13. The first satellite launched by India in the year 1980
14. The largest and the first ever discovered asteroid
15. The planet having 427C during day and -173C during night
17. The planet that spins opposite to other planets
18. The planet having atmospheric thickness of about 800km to 1000km
19. The rocks failed to form a planet during the formation of the solar system
20. First imaging X-ray telescope later named as 'Chandra'

1. The man who found the 'Laws Of Planetary Motions'?
4. The planet having more than 60 moons
5. The first space shuttle launched on 12th April 1981; followed by Challenger,Discovery,Atlantis
6. Copernicus model also known as 'Sun-centered'
8. The planet discovered by William Harshall in 1781
9. comet The comet that comes close to the sun every 76 years
16. Celestial self-luminous objects that produce energy on their own in the form of radiation