___________ are celestial bodies which produce their own heat and light.

___________ are called heavenly bodies.

Jupiter , Saturn , Uranus and Neptune are called ?

___________ is closest to the sun.

Millions of stars together form a group is called _____________.

Name the concept ,which considered the universe to be roughly the same at any point of time

The __________ is the only natural satellite of the Earth.

How many planets are in our solar system?

The ____________ is the largest and the brightest thing in the night sky.

The sun is at the heart of the ___________.