How long is a year on saturn?
What percent of stars in the sky that appear to be single stars are actually binary stars?
Which planet in our solar system has the most circular orbit?
What is the part of the sun that we can see without any instruments?
Tell me how many moons do mars have?
The kappa cygnids and the northern delta aquarids are names for what phenomena?
Mars has a thin atmosphere composed mainly of what gas?
In a search for planet x, this celestial body was found after astronomers had searched for an orbital disturbance of the planet uranus?
What is the density of stars?
How do clouds form?
How many black holes exist?
How many moons does uranus have?
Which book of aryabhatta is regarded as a great contribution in astronomy?
Why stars are seen in colours?
What are galaxies?
