How many moons do mars have?
Do black holes really exist?
How many black holes are there?
Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
Explain how is saturn like earth?
Tell us something about your education background as a kid.
What are asteroids like?
Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?
Name the part of the sun that we can see without any instruments?
Describe the venus atmosphere 14 how far from earth, is the moon?
What is the distance between two galaxies?
How many moons do ceres have?
How many moons do Ceres planet have?
How did the moon form?
What is difficult about being an Astronomer?