The earth is in different positions while revolving around the sun because is:
The largest planet is :
The center of solar system:
The first person to land on the moon:
The coldest planet:
The planet nearest to the earth:
Halley’s commet appears once in :
How many times the sun is bigger than the earth?
What is the source of electric energy in an artificial satellite?
The first woman in space is
Which planet is closest to earth?
The Galaxy to which we belong is called
Which planet has such conditions that could support life?
Which is India’s first communication satellite?
Which of the following is the space expedition to Mars?