Which star does not change its position in the sky?
All of saturns moons are composed predominantly of what substance?
Rounded off to the nearest trillion, how many miles is in a light year?
The work of this harvard college observatory scientist made possible the first accurate determination of extragalactic distances by what is often called henriettas law?
Which is the only star of the milky way galaxy?
What is distance from the earth to the moon?
What are gamma ray bursts?
These doughnut shaped zones of atomic particles consists of electrons and protons captured by the earths magnetic field from the solar winds and are called?
Which is the star nearest to earth?
When did solar system come into existence?
Tell us something about your education background as a kid.
What are the scientific names for the two regions of a sunspot?
How many types of galaxies are there?
When did the challenger return to the earth after its first mission?
How is venus different to earth?
