Fill in the Blanks
1. The Science that studies the Universe is called ……………..
2. Scientific research in astronomy began with the Italian astronomer named …………….. .
3. The Big Bang Theory was first proposed by a Belgian astronomer named …………….. .
4. The word Universe is originated from the Latin word …………….. .
5. The Universe is expanding about …………….. km per second.
6. ………….. is a unit of distance.
7. Light moves at a velocity of above …………….. km per second.
