Ep 1: Live now

Professor Donald Johanson - paleoanthropologist.

Ep 2: 15th June.

Kayla Iacovino - volcanologist, petrologist and Star Trek fan.

Ep 3: 29th June.

Albert Lin - tv presenter, explorer, geographer and technologist.

Ep 4: 13th July.

Jaelyn Eberle - mammal paleontologist, studying the Arctic region.

Ep 5: 27th July

Gerhard Steenkamp - dental vet operating on big wildlife.

Ep 6: 10th August.

Professor David Holland - glacial melt specialist.

Ep 7: 24th August.

Ramadan Hussein - Egyptologist and archaeologist.

Ep 8: 7th September.

Professor David Montgomery - soil and regenerative farming specialist.