Talking Science

Water is so familiar we barely notice it, and yet almost everything about it is scientifically peculiar — it breaks the rules that other liquids obey, and life depends utterly on those broken rules. This episode reveals why the most common substance on Earth’s surface is also one of the strangest.

You’ll come away understanding what makes a water molecule special, why ice floats when nearly every other solid sinks, why water can climb up a tree, and why these oddities made life on Earth possible.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: Royal Society of Chemistry – “Water”; Philip Ball, H2O: A Biography of Water; USGS Water Science School.

Coal, oil and gas power most of the modern world, but few of us stop to think about what they actually are: the buried, transformed remains of living things from unimaginably long ago. This episode traces where fossil fuels come from, why they pack such a punch, and the fundamental trade-off at the heart of using them.

You’ll come away understanding how fossil fuels formed over deep time, why they store so much energy, why they’re called “ancient sunlight”, and why the very thing that makes them so useful is also what makes them a problem.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: US Energy Information Administration – “Fossil fuels explained”; Geoscience Australia – energy resources; Vaclav Smil, Energy and Civilization.

Venus is almost exactly the same size as Earth, made of the same stuff, and formed right next door — yet it became one of the most hellish places in the solar system. This episode explores how a world that should have been Earth’s twin turned into a furnace, and what it warns us about our own planet.

You’ll come away understanding why Venus is so astonishingly hot, what a “runaway greenhouse effect” is, why the two sister planets ended up so different, and why Venus is the ultimate cautionary tale for understanding climate.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: NASA – “Venus” planetary pages; ESA – “Venus Express” mission findings; David Grinspoon, Venus Revealed.

Taking a living organ from one person and making it work inside another is one of medicine’s most astonishing achievements — and the biggest obstacle isn’t the surgery, but the body’s own defences. This episode explains how transplants work, why rejection is so hard to beat, and the bold new frontier of using animal organs.

You’ll come away understanding why the immune system attacks a transplanted organ, how anti-rejection medicine makes transplants possible, why donor organs are so scarce, and where the emerging science of animal-to-human transplants stands.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: Australian Government – DonateLife; The Transplantation Society – patient resources; recent news coverage of gene-edited pig organ transplants (2022–2025).

In 2006 Pluto was famously “demoted” from planet to dwarf planet, and plenty of people are still cross about it — but the real story is far more interesting than a snub. This episode explains what actually happened, and the vast frozen frontier of the solar system that Pluto belongs to.

You’ll come away understanding why astronomers changed Pluto’s status, what the word “planet” really means, what the Kuiper Belt is, and what the New Horizons spacecraft revealed when it finally reached this distant little world.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: NASA – “New Horizons” mission pages; International Astronomical Union – “Pluto and the Developing Landscape of Our Solar System”; Mike Brown, How I Killed Pluto and Why It Had It Coming.

Every living thing on Earth is built around a single element, and it isn’t there by accident — carbon has a chemical talent that no other element can match. This episode explains why life, from bacteria to blue whales, is carbon-based, and how the same versatile atom gives us both diamonds and the graphite in a pencil.

You’ll come away understanding what makes carbon uniquely able to build the molecules of life, why the same element can be diamond or soot, and how carbon links the living world, the air and the rocks together.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: Royal Society of Chemistry – “Carbon”; Primo Levi, The Periodic Table (the chapter “Carbon”); Nick Lane, Oxygen and related works.

Your smile, your eye colour, the shape of your nose — you carry echoes of your parents in your very cells. This episode unpacks the genetics of inheritance: how traits pass from one generation to the next, and why the popular idea of “a gene for” this or that is usually misleading.

You’ll come away understanding what genes and alleles are, why some traits are dominant and others recessive, how you can carry a trait without showing it, and why most of what makes you you comes from many genes working together with your environment.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: Khan Academy – “Classical and molecular genetics”; National Human Genome Research Institute – education pages; Adam Rutherford, A Brief History of Everyone Who Ever Lived.

Launched in the 1970s with less computing power than a modern key fob, two small spacecraft have journeyed further from home than anything humanity has ever built — and they’re still calling home from interstellar space. This episode tells the extraordinary story of Voyager.

You’ll come away understanding how a rare planetary alignment made the “Grand Tour” possible, what the Voyagers discovered, what it means that they’ve entered interstellar space, and the story of the Golden Record they carry.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: NASA JPL – “Voyager Mission” pages; Carl Sagan, Pale Blue Dot; Jim Bell, The Interstellar Age.

The world is racing to shift how it makes electricity, away from burning fossil fuels and towards energy drawn from the sun, the wind and moving water. This episode explains how the main renewable technologies actually work — and the real engineering challenge they still face.

You’ll come away understanding how solar panels and wind turbines turn nature into electricity, why hydro is the quiet giant of renewables, what “intermittency” means, and why energy storage is the key that unlocks the whole transition.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: International Energy Agency – “Renewables” reports; CSIRO – “Renewable energy”; David MacKay, Sustainable Energy — Without the Hot Air.

Everything around you — water, salt, metal, your own body — exists because atoms join together in a few specific ways. This episode explains chemical bonds, the invisible glue that turns a handful of elements into the endless variety of the material world.

You’ll come away understanding why atoms bond at all, the difference between ionic, covalent and metallic bonds, and how the way atoms stick together explains why salt dissolves, why diamonds are hard, and why metals conduct electricity.

Talking Science is sponsored by Kinsoft. Visit www.kinsoft.com.au

Further reading: Khan Academy – “Chemical bonds”; Royal Society of Chemistry – “Bonding”; Peter Atkins, Chemistry: A Very Short Introduction.