Catalyst - Season 19

Catalyst uncovers the secrets to healthier skin, gets up close and personal with some of the most common rashes, spots and blemishes. Dr Shalin Naik and Dr Caroline West show you how to care for the largest organ in your body. And where better to do that than at the beach?

With the help of a team of Australia's top dermatologists we'll find out why skin health is more than a cosmetic issue. We'll learn what we can all do to keep our skin working well for us at any age. We'll find out some surprising facts about moisturiser - and look at how technology is being used to help in the detection and protection against skin cancer.

And in the burns unit of ground-breaking Australian surgeon Fiona Wood, we'll meet some of the patients benefiting from her work and find out the latest science around regenerating and protecting skin in trauma.

A new season of Catalyst begins with a 2-part special, Feeding Australia, where chef Paul West reveals the key breakthroughs in science and technology that will shape what we might be eating in the coming decades.

To many people, organic or wild caught food is the best and healthiest produce to eat. But in 2050, when Australia's population hits 40 million, we may have to find more sustainable ways to farm our food than nature currently provides. Chef Paul West, Nutritionist Professor Clare Collins and Dr Noby Leong travel across Australia to meet the growers and scientists who are making key breakthroughs in this field.

In Part 2 of Feeding Australia, Chef Paul West, Dietitian Professor Clare Collins and Dr Noby Leong reveal the key breakthroughs in science and technology that will shape what we might be eating in the coming decades.

Catalyst examines the science of time travel. What do we need to be able to do or understand to construct a functioning time machine. Dr Graham Phillips showcases the scientists working on the cutting edge of discovery.

Nutritionist Dr Joanna McMillan is on a mission to help stem the onslaught of Type 2 diabetes, devising a personalised program to help four Australians on the brink of developing the chronic illness.

Vibrant maths whizz Lily Serna pits mathematics against luck in fields as varied as birthdays, blackjack, Aussie rules football, and even air sea rescues - and puts the audience to the test in this massive maths test.

In the season final, Dr Caroline West meets scientists working at the forefront of memory research, introducing remarkable individuals whose exceptional memories and unique abilities are helping unlock the secrets of memory.

Dr Nikki Stamp meets Australians whose lives are transformed by artificial body parts, and scientists whose cutting-edge work merging biology with technology reveal a world on the cusp of a bionic revolution.