Which planet does not spin on its axis?

Which planet appears blue like an ocean?

 Inactive volcanoes, rocky deserts and ice covered poles are found on which planet?

The shape of the earth

Which is the smallest and closest planet  to the sun?

Which scientist first discovered the rings around Saturn?

Which of the following consists of countless number of celestial bodies which includes sun, stars moon etc?

The actual object entering the atmosphere is called

Gas which is not present in the sun is?

Chandrayan-I was launched on