The Science Show - Full Program Podcast

In an electrifying episode of the Science Show, find out how getting struck by a bolt from the heavens can help at least one species of tall tree not only survive, but thrive. Then step back in time to solve a tool-making mystery in Samoa and discover hidden treasures in centuries-old books — including a bubonic plague flea.

In the three years since the James Webb Space Telescope sent back its first images, it's pulled back the veil on a whole bunch of mind-blowing cosmic phenomena. So how has this $13 billion bit of kit shaped what we know about the Universe — and what is yet to come?

We hear from scientists who push the boundaries of creation, whether that's building wild and wacky snack flavours (successfully) or cloning extinct tropical frogs (unsuccessfully … so far). And since President Donald Trump retook office, the state of health and science research in the US has been precarious for many who work in those areas. But there is a silver lining. Other countries such as Australia are implementing programs to recruit US researchers looking to relocate.

We often hear about places where the air quality is bad, even dangerous, but what about where the air is the cleanest on Earth?That air can be found blowing onto the north-west tip of Tasmania at Kennaook/Cape Grim, where an air pollution station has quietly been keeping track of how humans have changed the makeup of our atmosphere for 50 years.So what does the world's cleanest air tell us?

Karl Popper (1902-1994) is regarded as one of the greatest philosophers of science of the twentieth century. Alan Saunders presented this portrait of Karl Popper for The Science Show in January 2001.

A weekly injection that stops that hankering for hot chips and donuts?Many people on Ozempic and similar medications report this phenomenon, saying they no longer have incessant thoughts about sweets and fried food.So how do these drugs, known as GLP-1 agonists, work in the brain to dial down "food noise" and help people lose weight?

The overland telegraph connecting Australia to the world was completed just over 150 years ago. It was built due to the dedication of a public servant, Charles Todd.

It's the size of a sesame seed, but it could cause unfathomable destruction to Australia's forests and urban canopy.A beetle called the polyphagous shot-hole borer (Euwallacea fornicatus) is silently spreading through Perth and its surrounds, forcing councils to chop and chip hundreds of trees — even century-old Moreton Bay figs.So how does the tiny pest cause such massive problems?

Roger Short (1930-2021) discusses influences in his early life, and some of his research achievements including melatonin as a controller of circadian rhythms, and aspects of reproductive biology across the animal world.

First they learnt how to flip open wheelie bin lids. Now they're using water fountains.Masters of the urban landscape, sulphur-crested cockatoos (Cacatua galerita) are more than capable of some quirky (and sometimes messy) antics.So what do these entertaining exploits tell us about cockie innovation — or even cockie culture?

Get ready for gravitons, dark photons and transition states. Kathryn Zurek takes us on a tour of the bewildering world of quantum physics.

A couple of months ago, a killer started mobilising off the South Australian shore — one that would wipe out marine life, make surfers feel sick, and smother picturesque beaches in thick foam.The culprit? A bloom of tiny organisms called microalgae. We can't see them with the naked eye, but in big enough numbers, they can devastate ecosystems.So what made the South Australian algal bloom so lethal, and can anything be done about blooms like it?

People have been in the Australian wilderness for generations. But can people be considered part of the natural landscape or will they always have an impact?

If you were impressed by generative AI such as ChatGPT, then artificial general intelligence or AGI promises to really knock your socks off.Over the past couple of decades, tech companies have been racing to build AGI systems that can match or surpass human capabilities across a whole bunch of tasks.So will AGI save the world — or will it spell the beginning of the end for humanity?

She could only read and write from age 10. She reared children and had a first unsupportive husband. But Mary Somerville was able to correct the work of Isaac Newton, help discover Neptune, and write a science book which became a university text.

The next time you pick up a bag of spuds from the supermarket or fill up the car with petrol, you can thank the Treaty of the Metre for the metric system that underpins daily life.The treaty was signed exactly 150 years ago, when delegates from 17 countries gathered on a Parisian spring day to establish a new and standardised way of measuring the world around us.But the metre's inception predates the treaty that bears its name by nearly 100 years. So how did it come about, and how has its definition changed over the centuries?

Amateur fossil hunters make a major discovery. And Marilyn Renfree describes the sophisticated reproduction of marsupials.

Southern right whales (Eubalaena australis) were named by whalers because their high oil content made them the "right" ones to kill.In the decades since whaling was banned, southern right numbers increased — but a new study shows that population growth stalled, and might've dropped a bit, despite current numbers still far below what they were in pre-whaling times.So what's going on with the southern rights?

David Walker at UCLA says he can halt aging in fruit flies. Can the same concepts be applied to humans? And two tertiary students and an artist describe combining science and artistic pursuits.

Cobras, taipans, black mambas — Tim Friede's been intentionally bitten more than 200 times by some of the most venomous snakes on Earth.And he survived, mostly because years of self-injecting venom let him develop immunity to them.(Please do not try this yourself!)Now his blood's been used to make a broad-spectrum antivenom that researchers say may protect against nearly 20 deadly snakes.But this is not how antivenom is usually made. So how are snake antivenoms produced, and where are we with a "universal" version?

Mansi Kasliwal describes how she detects supernovae – the massive stellar explosions where elements are formed. We learn how dung beetles saved the Australian environment from the big problem, and David Attenborough shares his love for Birds-of-paradise.

Hate getting needles? You're in good company — one in five people in Australia have needle fear.

Sharks have survived 500 million years while mass extinctions have wiped out other species. Now, sharks are under threat.

Somewhere out past Mars in the early hours of Easter Monday, a space probe called Lucy whizzed by an asteroid named Donaldjohanson.Lucy then sent back images showing Donaldjohanson is about five kilometres wide and shaped like a peanut.It's one of a handful of asteroids on Lucy's 12-year itinerary.So what does the billion-dollar mission hope to achieve?

Palaeontology helps reveal why some animals are in desperate need of help while others thrive.

Gout Gout is fast becoming the face of Australian athletics, regularly clocking blisteringly quick times over 100- and 200-metre sprints.And he's only 17. Many think the best is yet to come.So what is it about Gout that makes him such an impressive sprinter at such a young age?

A protein in the immune system, DECTIN-1 - primarily responsible for defending the body against fungal infections, has been found to control the severity of autoimmune diseases such as irritable bowel disease (IBS), type 1 diabetes, eczema, and other chronic disorders.

We've been hearing a lot about a certain proposal to get nuclear power up and running in Australia, but little's been said about what happens when plants reach the end of their life.Decommissioning a single nuclear power plant can cost hundreds of millions of dollars and take decades.So what's involved, and why is the process so long and expensive?

Soils are too often neglected but caring for them brings many benefits for plant nutrition, human health and a boost for the farm economy.

Hearts, kidneys and now livers — over the past couple of years, surgeons have taken all these from gene-edited pigs and put them in people.

Nick Rowley reviews out progress towards net zero carbon emissions, Jared Diamond proposes mining the sea floor, and California’s legacy of Albert Einstein.

As far as planets go, they don't get much more iconic than Saturn. A huge golden ball encircled by gigantic rings. But those distinctive rings — the very things that give Saturn its pizzazz — have seemingly disappeared. So what’s going on, and when will they be back?

Lord Howe Island may appear an island paradise, but its ecology has been under intense pressure from invasive species such as rats and pigs. Now birds are being found with stomachs full of plastic.

They might be the epitome of cool, but Formula 1 race car drivers can get hot — really hot.An F1 cockpit can heat up to 60 degrees Celsius, and this affects cognition — the last thing you want when you're fanging around a track at 300kph.This year, a new rule was introduced to give F1 drivers a bit of relief from that heat … which is just one of the risks of F1 racing.Because we often hear about the performance of the cars in the race, but what about the humans behind the wheel?

80% of diseases are impacted by environment or lifestyle described as your exposome. Thomas Hartung expects information from studying the exposome will bring benefits on par with those brought by studying the human genome.

For women who get bacterial vaginosis or BV, a common condition that can cause a fishy-smelling discharge, many will get it again (and again).Why some people were prone to recurrent BV was a mystery … until now. Australian researchers have shown that BV-related bugs can be sexually transmitted, and treating male partners significantly cuts recurrence rates.

America’s top research institutions face an uncertain future.

A weekly injection that stops that hankering for hot chips and donuts?Many people on Ozempic and similar medications report this phenomenon, saying they no longer have incessant thoughts about sweets and fried food.So how do these drugs, known as GLP-1 agonists, work in the brain to dial down "food noise" and help people lose weight?

Naomi Oreskes talks about Donald Trump and her latest book The Big Myth ahead of her visit to Australia in early March.

The H5N1 strain of avian influenza is currently ripping through the US, infecting wild animals, livestock and people. One person has died, and around 70 more infections have been confirmed.Meanwhile, the Trump administration has made massive cuts to the nation's leading science and health agencies, and announced plans to withdraw from the World Health Organization.As the risk of another pandemic rises, what does all this mean for us in Australia?

San Antonio Texas has restored the San Antonio River encouraging plants and animals back to the city.

An asteroid dubbed 2024 YR4 is causing a stir among the space community and a frenzy in the media. It currently has a 2.3 per cent chance of crashing into Earth three days before Christmas in 2032. But this is not our first asteroid rodeo. Get in touch with us: [email protected]

Vale the Professor of Happiness Felicia Huppert

Varroa is the parasite responsible for destroying bee colonies all around the world and is regarded as "the greatest biological threat to Australia's honey bee population."The good news is that some honey bees can fight back. And they're being helped by breeders, scientists and artificial insemination on the tiniest scale.Learn more on Lab Notes, the show that brings you the science of new discoveries and current events. Get in touch with us: [email protected]

Unlike other deserts, Australian deserts experience occasional high rainfall. It supports a unique ecology.

Australia's summer UV levels are high enough to cause sunburn in as little as 11 minutes.Yet the summer sun in the Northern Hemisphere rarely feels that full on.So why does our sunlight have that extra "bite"?Spoiler: it's not the hole in the ozone layer.Learn more on Lab Notes, the show that brings you the science of new discoveries and current events.Get in touch with us: [email protected]

Opals, ancient humans and sharks dating back 465 million years. This week we see how today’s world has been shaped from the distant past.

Antarctic krill (Euphausia superba) do much more than fill whales' bellies. These tiny crustaceans also play a huge role in Earth's carbon cycle.They sequester around 40 million tonnes of carbon each year, mostly in their poo — that's the equivalent of taking 35 million cars off the road.Yet there's plenty we don't know about these thumb-sized critters.Now a new study has revealed what they get up to under the Antarctic winter sea ice, and how this behaviour affects carbon calculations.Dive into the secret life of krill on Lab Notes, the show that brings you the science of new discoveries and current events.Get in touch with us: [email protected]

Opalised fossils previously overlooked at the Australian Museum have overturned our understanding of the origin of mammals with the emergence of a whole new age of mammals: The Age of Monotremes.

Robert F Kennedy Jr is tipped to lead the US Department of Health and Human Services. Over the years, RFK Jr has repeatedly pushed the claim that childhood vaccines cause autism spectrum disorder — a theory that's been well and truly debunked.So where did this idea come from? What's bowel disease got to do with it? And what might the US expect with an anti-vaxxer at the helm of health and human services?Learn more on Lab Notes, the new show that brings you the science of new discoveries and current events. Get in touch with us: [email protected]