light year

Saraswaty Supercluster- Supercluster Discovered by Indian Scientists

Saraswaty Supercluster discovered recently, is the first discovery of a super cluster by a team consisting only Indian scientists and researchers.  What are galaxy clusters? A Galaxy consists of stars, dust, hot gases and dark matter which are held together by the gravitational force towards the centre. In many cases the cetre is considered to be

Light year made simple

How far are we from the sun? How far are the planets away from each other? The distance between the sun and earth is about 149,600,000 Km. The distances involved are so very huge that astronomers do not measure them in miles or kilometers. If it is done so, then they have to keep a