## Gravitational Waves: A great discovery of the decade

Gravitational waves are some kind of waves in the fabric of space-time proposed by Einstein. So, to understand gravitational waves, first we have to know about the space-time. What is space-time: To understand the space-time concept we have to understand about space and time separately. So, what is space? Simply, space is the 3 dimensional coordinate in which we are living. To locate an object in space, we use three