Source of Information

I am collecting all this information given here from various sources like-

1.   સફારી  Safari monthly ie. a magazine on general knowledge and science and history, it is a Gujrati magazine, also published in English
2. ISRO ( Indian space research organisation)
3. Nasa ( national aeronautics and space agency)
4. ESA ( European space agency)
5. Brahmand the astronomy club of Pandit Deendayal Petroleum University
6. space.com- it is one of the best websites for information regarding space.