Close to 5000 planets and counting orbiting other stars have been discovered so far, yet we have no evidence of a planet similar to Earth. But this will likely to change as the astronomers have a good possibility that they will detect signatures of life on some of these worlds in future. What will such a discovery mean for humans on Earth and meaning we will derive from it? Why do we even care about life on other planets? Dr. Salman Hameed will discuss these topics and will try to discuss the techniques currently in use to detect life on other planets.