A prediction of Einstein's General Theory of Relativity, gravitational
waves (also called gravitational radiation) are amongst the most elusive
signals from our Universe reaching the Earth - 'ripples in the
curvature of space-time'. The information carried by these signals will
offer a completely new view of the Universe, providing insight into the
hearts of some of the most violent events in the Cosmos - from the
formation of black holes to the primordial events following the Big Bang.
A global network of Advanced gravitational wave detectors is now starting
operation with expectations of direct observations opening up the
gravitational window of the Universe during the next few years.
The nature of gravitational waves, how the detectors work (including a potential detector in India) and what the data from the detectors can tell us about the Universe we inhabit will be discussed during the talk.