Different seasons occur on Earth due to ______ of the Earth around the sun .

The constellation in the imaginary shape of plough is 

Planets are heavenly bodies that move around the sun in fixed paths called _______ .

Galaxy is a large group of 

______ is the only planet other than Earth which has the possibility of life to exist :

When do the Halley's comet appears the next time in future ?

Our solar system belongs to the galaxy called the

The Earth completes one ______ around the Sun in 365 days .

The Sun's small planets are called asteroids . Most of them are moving around the sun, mainly between  

An example of a constellation is