Un-Answered Questions { Astronomy }
What is the density of stars?
How stars produce energy?
What is super galaxy?
The first man who walked on the moon?
Which is the only star of the milky way galaxy?
How many types of galaxies are there?
Why these stars are called novae?
What is distance from the earth to the moon?
Who stated that planets are originated from the collision of the sun and comet?
What is the difference between a star, satellite and a planet?
What is the distance between two galaxies?
Which space flight sent the pictures of moon’s farside and when?
When was the first american manned space mission to moon begun?
When did the challenger return to the earth after its first mission?
Which are the first soviet us space mission to moon?
