The man made satellites revolving around the earth are called … satellites.

Earth rotates on its

… is the smallest planet.

The only planet on which life exists

… is called morning star or evening star.

Which among these is not a planet?

This planet has rings

… revolve around sun in highly elliptical orbits.

Asteroids are mainly present between

… is called blue planet.

The planets which rotate from east to west are

Planets shine more brightly than stars because

The nearest planet to sun is

Halley’s comet is periodically seen for every … years.

A clock based on shadows of an object due to sunlight is