Talking Science

A vaccine is a training exercise for your immune system, a way of acquiring the memory of an infection without the danger of having one. We look at what is actually in a vaccine, why some need boosters and others last a lifetime, how mRNA vaccines differ from everything that came before, and what herd immunity really means mathematically.

You'll come away understanding the difference between the main vaccine types, why effectiveness figures are so often misread, and why some diseases have been eradicated while others keep coming back.

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

Further reading: World Health Organization immunisation pages; Australian Immunisation Handbook; Nature Reviews Immunology.

Everything you have ever touched is made of atoms, and atoms are almost entirely empty space. We trace how we worked out what atoms are without ever seeing one, why the solar-system picture on classroom walls is wrong, and what actually stops your hand passing through a table.

You'll come away understanding what is inside an atom, why electrons don't spiral into the nucleus, and how something made mostly of nothing manages to feel solid.

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

Further reading: Royal Institution atomic structure resources; CERN particle physics explainers; Feynman Lectures Vol. I.

We have better maps of Mars than of our own sea floor. The deep ocean is the largest habitat on Earth and the least explored, a world of crushing pressure, permanent darkness, and animals that make their own light. We look at what lives down there, how it survives, and why the deep sea matters to everyone living on the surface.

You'll come away understanding why pressure is the real barrier, how ecosystems thrive with no sunlight at all, and what deep-sea mining would actually be disturbing.

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

Further reading: NOAA Ocean Exploration; Schmidt Ocean Institute; CSIRO marine research.

Jupiter is so large it is better thought of as a failed star than an oversized planet, and its gravity has shaped the entire solar system. But the real interest now is its moons, particularly Europa, which almost certainly hides a saltwater ocean holding twice the water of Earth's, beneath a shell of ice.

You'll come away understanding what the Great Red Spot actually is, how tidal heating keeps distant moons warm, and why Europa has become one of the best places to look for life.

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

Further reading: NASA Juno and Europa Clipper mission pages; ESA JUICE mission; Galileo mission science summaries.

Antibiotics are arguably the most consequential medical advance in history, and we are steadily losing them. We look at how antibiotics actually kill bacteria, why resistance is an inevitable evolutionary response rather than a surprise, and what a post-antibiotic era would genuinely mean for ordinary medicine.

You'll come away understanding why finishing a course matters, why antibiotics do nothing for a cold, and why the drug pipeline has largely dried up.

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

Further reading: World Health Organization AMR reports; Australian Commission on Safety and Quality in Health Care (AURA); The Lancet antimicrobial resistance series.

Are we alone? It's the oldest question we have, and for the first time in history we have instruments capable of actually answering it. We look at where life might be hiding in our own solar system, how astronomers hunt for biosignatures on planets trillions of kilometres away, and why the definition of life turns out to be surprisingly slippery.

You'll come away understanding what extremophiles taught us about where life can survive, why Europa and Enceladus matter more than Mars for this question, and how we could detect life without ever seeing it.

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

Further reading: NASA Astrobiology Institute; SETI Institute research pages; ESA astrobiology resources.

Every living thing on Earth runs on the same molecule: DNA. We look at what DNA actually is, how a code written in just four chemical letters can build an entire organism, and how that code copies itself every time a cell divides. We also cover what genes really do, and why 'a gene for' something is almost always a misleading phrase.

You'll come away understanding the path from DNA to protein, why mutations aren't automatically bad, and how the same instruction set builds a bacterium, a blue whale and you.

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

Further reading: National Human Genome Research Institute; Nature Education Scitable; Your Genome (Wellcome Connecting Science).

Quantum mechanics is the most precisely tested theory in the history of science, and also the most baffling. We walk through the famous double-slit experiment, what superposition and uncertainty actually mean, and why 'observation' in quantum physics has nothing to do with consciousness. We also separate the genuine weirdness from the mysticism that gets attached to it.

You'll come away understanding why particles behave like waves, why the uncertainty principle isn't about clumsy measurement, and why the technology you're using right now depends on all of it.

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

Further reading: Feynman Lectures on Physics Vol. III; CERN quantum physics explainers; Stanford Encyclopedia of Philosophy on quantum theory.

Earthquakes are the planet releasing centuries of accumulated strain in a matter of seconds. We look at what is actually happening underground, why the magnitude scale is far more brutal than it appears, why some moderate quakes kill more people than large ones, and why reliable short-term prediction remains out of reach.

You'll come away understanding the difference between magnitude and intensity, what makes a building survive, and why Australia gets earthquakes despite sitting nowhere near a plate boundary.

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

Further reading: Geoscience Australia earthquake resources; USGS earthquake hazards program; IRIS seismology education.

The ground beneath you is moving, about as fast as your fingernails grow. Plate tectonics is the single idea that explains earthquakes, volcanoes, mountain ranges, ocean trenches and why Africa and South America look like puzzle pieces. We trace how a theory that was mocked for decades became the foundation of modern geology.

You'll come away understanding what the plates actually are, what happens at each type of boundary, and why Australia is geologically one of the quietest places on Earth.

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

Further reading: Geoscience Australia; USGS plate tectonics resources; Smithsonian Global Volcanism Program.