BBC Discovery

Unstoppable: Tebello Nyokong

Loading player...
Dr Julia Ravey and Dr Ella Hubber are both scientists, but it turns out there’s a lot they don’t know about the women that came before them. In Unstoppable, Julia and Ella tell each other the hidden, world-shaping stories of the scientists, engineers and innovators that they wish they’d known about when they were starting out in science. This week, the story of a woman who gained her education by herding sheep during her childhood to becoming one of Africa’s most prominent scientists.

Born under Apartheid in South Africa, Tebello Nyokong and her family uprooted their lives to escape the unequal education system enforced upon Black South Africans. After herding sheep proved she could do anything a boy could do, Tebello ended up studying science and found a love for chemistry. In the face of limited opportunities, she once again uprooted her life and took her studies oversees, but this was when she was introduced to something huge: a new, ground-breaking cancer treatment. Now Tebello is using nanotechnology to get this therapy off the ground, all while she fights to make Africa a science superpower.

Presenters: Ella Hubber and Julia Ravey
Guest Speaker: Professor Tebello Nyokong
Producers: Ella Hubber and Julia Ravey
Assistant producers: Sophie Ormiston, Anna Charalambou and Josie Hardy
Sound Designer: Ella Roberts
Production Coordinator: Ishmael Soriano
Editor: Holly Squire

(Image: Professor Tebello Nyokong. Credit: Professor Tebello Nyokong)
5 May 2025 English United Kingdom Science

Other recent episodes

The Life Scientific: Washington Yotto Ochieng

As a child growing up on the shores of Lake Victoria in western Kenya, Washington Yotto Ochieng once watched a plane cross the night sky and told his mother he wished he could travel on it. But he remembers her encouraging him to dream bigger... Today, Washington is a Professor…
18 May 26 min

The Life Scientific: Lucy Carpenter

Working on a remote tropical island in the Atlantic might sound like some sort of romantic idyll - but trying to conduct scientific research on a windy, isolated volanic outcrop is no picnic, as Lucy Carpenter can attest! Lucy is an atmopsheric chemist and a Professor at the University of…
11 May 26 min

The Life Scientific: Jens Juul Holst

As recently as a few years ago, the idea of a self-administered injection that would deliver proven weight-loss results might have sounded fantastical. Today, these medications are a reality and a global phenomenon; hailed in many quarters as “miracle drugs" for their success in treating obesity and diabetes. They do…
4 May 26 min

The Life Scientific: Jim Ashworth-Beaumont

It's a rare thing to encounter a medical specialist who has experience of his field from the expert and the patient perspective - but not unheard of... Jim Ashworth-Beaumont is an orthotist and prosthetist who spent years helping people adapt to life with artificial limbs and musculoskeletal supports, before a…
27 Apr 26 min

Inside Universe 25

“I shall largely speak of mice,” the paper begins “but my thoughts are on man.” So begins a truly extraordinary scientific paper, and an equally extraordinary story. “Death Squared: The Explosive Growth and Demise of a Mouse Population.” was published in 1973 by John Calhoun, and it detailed his increasingly…
20 Apr 26 min
All episodes