Earth takes 24 hours to complete one

The dark matter filled between spaces in galaxies is called

Earth has a lot of water on its surface to support diversity of

Different craters and ridges are seen on the surface of

The distance of sun from earth is nearly

The movement of stars is felt due to earth's

Stars in a group or congregation are called

'Uranus' and 'Neptune' were visited by space probe

A huge ball of hot gases which is also referred to as a star, is

Pluto was discontinued to be regarded as planet in 2006 due to its

The large reflecting telescope which is orbiting earth in outer space is called

Non luminous objects do not emit

The images which terrestrial telescope capture are not

Eclipses do not occur every month because the orbit of moon is

The natural satellites of a planet is

At poles sun does not rise or set for about

The hemisphere of earth faced towards sun, experiences

The objects which give out light are called

When sun is entirely or partially blocked out by moon, it is termed as

An imaginary line going through the center of earth from the north pole to the south pole about which the earth rotates is called