The Sky at Night — Episode 10: The Furthest Depths of the Universe

You are watching the episode The Furthest Depths of the Universe Astronomers in Australia have just announced the discovery of the most remote object known to science. It is a quasar - an object whose nature is not known with certainty but which is so far away that its light comes to us after a journey which has lasted for longer than the whole history of the Earth. Patrick Moore talks to Professor Sir Francis Graham Smith , the Astronomer Royal, about this remarkable discovery and its significance.