Stuart Kells' life as a bibliophile began with one ancient, leather-bound, blue book (R)

Cosmologist Tamara Davis on the complicated scientific quest to explore and colonise the Red Planet

After Kim Scott became a teacher and a father, he started looking for his Aboriginal family *CW: Aboriginal and Torres Strait Islander listeners please use discretion when listening as the following program references people who have died.

Gavin Pretor-Pinney loved gazing at clouds as a child. As an adult, his fascination with clouds drew him from England to Australia's Gulf of Carpentaria to see the Morning Glory, the world's most spectacular cloud formation

The late Mary Wilson rose up from Detroit's housing projects to find worldwide fame with The Supremes (R)

Avi Loeb was Harvard's top astronomer when he became intrigued by reports of a pancake-shaped object the size of a football field hurtling through our solar system

Sue Ellen Kusher’s father was an ASIO agent, and she and her siblings were taught to memorise number plates, spot unusual behaviour, and keep the family business secret at all costs

Ocean racing navigator Will Oxley first learned his trade through celestial navigation, using a sextant and the stars. He then began ocean racing around the world, and in 1998, he found himself upside down in a storm-wrecked Bass Strait

Warren Brown with the story of the fever sparked by claims of a gold reef in the Central Australian desert during the Great Depression (R)

Georgina Godwin grew up in Zimbabwe with a father who was the model of a British gentleman. Many years after she fled Africa for London, she discovered his secret identity