Which king of india built an astronomical observatory in 17th century?
How many moons do Jupiter planet have?
In the doppler effect, what is the correct term for the change in the color of light when an object that is emitting light is moving toward the observer?
Describe the atmosphere on Venus, Mar and Jupiter.
A meteor that reaches the surface of the earth is more accurately called a?
Who were the ancient indian astronomers?
Tell me how many moons does neptune have?
How many types of galaxies are there?
Why did you want to become an astronomer?
Is pluto really a planet?
How long is a day on saturn?
Name the part of the sun that we can see without any instruments?
Explain is pluto really a planet?
Is the moon escaping the earth?
Which is the first unmanned space vehicle which landed on the moon?