Hayat Ashraf

Gravitational waves are ripples in the fabric of spacetime caused by the acceleration or movement of massive objects. They were first predicted by Albert Einstein in his general theory of relativity in 1915 and were directly detected for the first time in 2015, leading to the birth of a new field of astronomy known as gravitational wave astronomy. Here are some key points about gravitational waves: 1. Nature of Gravitational Waves: Gravitational waves are disturbances in the geometry of spacetime itself, propagating outward from their source at the speed of light. They carry energy away from the source and cause the stretching and squeezing of spacetime as they pass through it. 2. Generation of Gravitational Waves: Gravitational waves are generated by any accelerating mass or asymmetrical mass distribution. Some common sources of gravitational waves include binary systems of compact objects (such as merging black holes or neutron stars), supernova explosions, and the early moments of t...