In this summer series, Herald Sun writer Fiona Byrne speaks to Australian authors about their craft. See omnystudio.com/listener for privacy information.

They saw something strange in the sky over Melbourne. But more than 50 years since one of the world's most baffling UFO sightings, debate continues over what it was and if there was a cover up.

Ahead of World Day Against the Death Penalty and the release of the new film Guilty, Bali Nine pastor Christie Buckingham reveals what it was like in the final moments before convicted drug smugglers Myuran Sukumaran and Andrew Chan were executed by firing squad - and three years on - what legacy...