Bruce A. Smith has given years of his life to researching the mysterious D B Cooper "skyjacking" in November 1971. A man who took over a Boeing 727 jet, demanded a large amount of cash in a bag and parachuted from the plane disappearing forever. Now, after two new documentary investigations, we look again at one of the world's biggest aviation mysteries and ask "who did it?"

Very special guest on Edition 500 - World-famous veteran UFO researcher, astronomer, computer scientist and venture capitalist Jacques Vallee - We talk about who will take UFO research forward, "exotic material research", the future of the internet and whether the "tic-tac" UFOs were what we thought they were... Plus we ask whether "back engineering" really happens...

This short Special Edition says THANK YOU for listening - and also talks with Canadian recording artist Rose Reiter who has produced a song dedicated to The Unexplained - you'll hear the song... "All Directions"

Jolene Babyak's father helped to run the notorious island-prison off San Francisco... She has fascinating tales of life there, the many infamous inmates - including Al Capone and the famous "escape..."

A. P. Sylvia in Boston on the worldwide folklore and stories about energy-sapping vampires...

We hookup with paranormal investigator Jason Hewlett in Western Canada...strange real-life stories from Vancouver and British Columbia...

A privilege to speak with former head of the UK's GCHQ "Spy Centre" Sir David Omand who has behind-the-scenes top-level stories of spying and intelligence-gathering from his four-decade career...

Leading thinker and author Anthony Peake with a late-2020 update on his latest research into consciousness, life after life and parallel universes... This is a specially-extended podcast-only version of the recent radio show conversation...

Gareth Patterson, based near Knysna, South Africa - talking about his life's work with animals and telling the full story of his extraordinary years of research on the elusive African version of Bigfoot - the "Otang..."

Specially extended Exclusive conversation with James Fox - who has made the excellent new UFO documentary "The Phenomenon"...