Is it possible that the United States government has been hiding evidence of discovered UFOs? And even biological matter of non-human origin that it has also found? These were the jaw-dropping claims made, last week, by an American whistleblower and former intelligence officer.  David Grusch’s testimony was at the heart of a US congressional hearing, held last week, to discuss sightings and evidence of what is now being called Unidentified Anomalous Phenomena. Today, Dr James Murray, programs director at Astronomy Australia, on the hearing that has grabbed the world’s attention.Subscribe to The Age & SMH: https://subscribe.smh.com.au/See omnystudio.com/listener for privacy information.