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The Science Show

The Science Show

261 episodes — Page 2 of 6

Lab Notes: How are long-range weather forecasts made?

It looks like most of Australia is in for a warmer-than-usual summer this year.That's according to the Bureau of Meteorology's long-range forecast, which was released in October.So — without a crystal ball — how do meteorologists make weather predictions so far out, how accurate are they, and how is climate change affecting them?You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Karl Braganza, National Manager of Climate Services at the Bureau of MeteorologyMore information:BOM's first long-range summer forecast shows increased chance of extreme heatThis episode of Lab Notes was produced on the lands of the Wurundjeri and Taungurung people.

Nov 18, 202514 min

Bragg winners for science writing, more from the Prime Minister’s Prizes for Science and water droplets used for geoengineering

In just 75 years the Earth’s average temperature is predicted to be close to 3 degrees above pre-industrial levels. We are in the fast lane to a different world, one that will not be friendly to the current range of plants and animals, including humans. The race is on to cool our overheating planet.

Nov 14, 202554 min

Lab Notes: How breastfeeding can protect against cancer

Thanks in part to 18th-century nuns, we now know that having children and breastfeeding reduces a mum's risk of developing breast cancer for years, even until her kid is well into primary school.Now Australian scientists have discovered how breastfeeding specifically enlists the immune system to protect against an aggressive and hard-to-treat type of breast cancer.You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Sherene Loi, medical oncologist at the Peter MacCallum Cancer Centre Extra information:Parity and lactation induce T cell mediated breast cancer protectionHaving children and breastfeeding reduces breast cancer risk by triggering immune system, study findsThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Nov 11, 202512 min

The Prime Minister’s Prizes for Science and a dilemma over the appropriate use of artefacts from a Roman shipwreck

Robyn Williams reports from the 2025 Prime Minister's Prizes for Science ceremony in Parliament House Canberra.

Nov 7, 202554 min

Lab Notes: How your brain chooses your next snack

It's mid-afternoon and time for a treat! Do you choose a healthy piece of fruit, or do you head straight for the chocolate? It turns out that well before we consciously decide what we're going to eat, our brain has already weighed up our choices — and in a fraction of a second. Now a new study shows which food attributes are processed by our brain faster than others, and how this might influence our dietary decisions. You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Violet Chae, PhD student at the University of Melbourne More information:Characterising the neural time-courses of food attribute representationsThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Nov 4, 202513 min

The history of life on Earth may be very different to what we think

We’ve built a picture of the evolution of biodiversity based on a few accessible fossils. But the real story may be very different.

Oct 31, 202554 min

Lab Notes: Times we thought we found aliens

We have a mysterious visitor to our little patch of the cosmos this week: A comet called 3I/ATLAS. This icy, rocky ball is only the third interstellar object we've discovered zooming past our Sun. There are scientists who think the comet may be alien technology sent from another solar system to invade Earth, but space agencies poured cold water on this idea. So how will we know if we truly find evidence of extraterrestrial life? You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Laura Driessen, radio astronomer at the University of Sydney Astronomers discover 3I/ATLAS — third interstellar object to visit our Solar SystemThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Oct 28, 202513 min

Paint additive boosts plant growth in greenhouses

An additive in paint converts ultraviolet light into red light allowing plants to grow more producing higher yields, a boon for greenhouse agriculture.

Oct 25, 202553 min

Lab Notes: The extinct ape-like human relative that made tools

Around 1.5 million years ago, in what's now Kenya, a human-like figure walked across the savannah. He was probably quite short by our standards, no taller than Danny DeVito. But unlike Danny DeVito, this ancient figure was not human. He was a long-extinct relative of ours called Paranthropus boisei. And now his fossilised hand bones are giving us never-before-seen insights into how he and his species lived. You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]: Carrie Mongle, palaeoanthropologist at Stony Brook University and the Turkana Basin Institute More information: New fossils reveal the hand of Paranthropus boiseiFossil hand bones hint that ancient human relative Paranthropus made tools 1.5 million years agoThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Oct 21, 202513 min

Teenagers encounter their challenges

Jonathan Porritt’ recent book, Love, Anger and Betrayal charts the lives of young British climate campaigners. Meanwhile in Australia under-16s are about to be banned from using social media.

Oct 17, 202554 min

Lab Notes: How solar eclipses trick birds into singing

Few astronomical wonders are as spectacular as a total solar eclipse, when the Moon fully covers the Sun, plunging us into daytime darkness. If we're lucky, we can see this epic phenomenon as it happens — through special glasses, of course. But our preoccupation with looking at the sky means we may not notice what's happening to the animals around us. When it comes to birds, many of which rely on the Sun to tell them when to sing a dawn chorus, how does a solar eclipse change how they behave? And what are the wider implications in this artificially lit world? You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Liz Aguilar, PhD student in bird reproductive behaviour at Indiana University BloomingtonMore information:Total solar eclipse triggers dawn behavior in birds: Insights from acoustic recordings and community scienceThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Oct 14, 202515 min

2025 Nobel Prizes plus more from the British Science Festival

Richard Robson from the University of Melbourne has been awarded the Nobel Prize for Chemistry, the nation’s first Chemistry Nobel in 50 years.

Oct 11, 202554 min

Lab Notes: How humpback whales bounced back

This has been a bumper year for whale-watching on Australia's east coast, with thousands of humpbacks spotted cruising along their annual migration route. This population was almost wiped out by whalers last century but has bounced back — and then some. A new estimate suggests there are now more of these humpbacks than in pre-whaling times. So why are the eastern Australian humpbacks going gangbusters while other populations aren't doing nearly as well? You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Wally Franklin, marine scientist at Southern Cross University and the Oceania Project More information:Eastern Australian humpback whale population now well above pre-whaling levels, report findsBoom to bust? Implications for the continued rapid growth of the eastern Australian humpback whale population despite recoveryThe Oceania ProjectIf you want to hear about how other Australian whales are going, check out The plight of the southern right whales. This episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Oct 7, 202514 min

Reports from The British Science Festival in Liverpool England

The BA, as it was known, established in 1831, was set up to advance science in the interest of the people, old and young, professional and lay. So, how well is it doing now amid international turmoil.

Oct 4, 202553 min

Lab Notes: Why CO2 peaks at this time of year

For decades, climate scientists have been tracking a curious phenomenon. Carbon dioxide levels in the atmosphere are steadily increasing overall but they also rise and fall in an annual rhythm — like the planet is breathing.Each spring, in the southern hemisphere, carbon dioxide levels start to plateau or maybe even drop slightly before shooting up again after summer.So what's driving these seasonal changes?You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Nick Deutscher, atmospheric chemist at the University of WollongongThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Sep 30, 202513 min

Climate change and pollution effects seen on Palau

Iconic jellyfish in saltwater lakes are disappearing.

Sep 27, 202554 min

Lab Notes: These high-tech mouthguards predict concussions

If you've been watching the Women's Rugby World Cup, you may have noticed players have been wearing special mouthguards that light up when they've suffered a significant knock to the head.It's the first time these concussion-predicting mouthguards have been trialled at a major competition.So in the wake of recent concussion concerns, from professional AFL and rugby league to community competitions, is this the future of sport?You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:Kate O’Halloran, digital journalist with ABC Sport More information: Women's Rugby World Cup players trialling flashing mouthguards to help predict concussionsThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Sep 23, 202512 min

Uncovering the mystery of Palau’s ancient terraces

Sophie Ly takes us to Palau to meet scientists and traditional knowledge custodians who are working together to uncover the secrets of Palau’s ancient terraces.

Sep 20, 202554 min

Lab Notes: After the SPF scandal — how is sunscreen tested?

Australia’s known for having some of the world’s toughest sunscreen standards, but in June, that reputation was rocked. Independent testing of 20 sunscreens found 16 did not meet their advertised SPF50 rating, including three children's sunscreens and three sold by the Cancer Council. So how are sunscreens tested, and what can we learn from these recent SPF revelations?You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.Get in touch with us: [email protected]:John Staton, scientific director at SciPharm More information:Choice report finds popular Australian sunscreens fail to meet SPF claims on labelThis episode of Lab Notes was produced on the lands of the Wurundjeri and Menang Noongar people.

Sep 16, 202513 min

Quantum biology, two botanic gardens, and the importance of archaeology

Just as quantum physics is poised to launch computing into a new era of capability, researchers are seeing the first signs of quantum effects in biology.

Sep 13, 202554 min

Lab Notes: Move over, NASA — Australia's heading back into space

When you think of leaders in the space sector, big hitters like NASA and private companies like SpaceX spring to mind.But since the very beginning of the Space Age, Australia has played a role in the space flight industry.And this year, an Australian company tried to launch a rocket from Australian soil.So why is Australia building and launching rockets at all, especially when so many nations are already miles ahead?You can binge more episodes of the Lab Notes podcast with science journalist and presenter Belinda Smith on the ABC Listen app (Australia). You'll find episodes on animal behaviour, human health, space exploration and so much more.

Sep 9, 202514 min

Bird navigation, reducing food waste and a tribute to John Clarke

As The Science Show concludes its celebration of 50 years, we remember John Clarke’s contributions to early Science Shows and point to a film just released looking at John’s life, produced by his daughter Lorin.

Sep 6, 202554 min

Lab Notes: Why your hay fever will get worse with climate change

One in four Australians get hay fever, and as the planet warms, our seasonal sneezes and sniffles are tipped to get much, much worse.

Sep 2, 202513 min

The Science Show celebrates 50 years

Join us for highlights from fifty years of The Science Show including Fred Dagg, who helps us with the big questions: what is it all about and why are we here?

Aug 28, 202554 min

Lab Notes: Why do whales beach themselves?

Every now and again, dozens or even hundreds of perfectly healthy looking whales strand themselves on a beach. Scientists have a few theories on why they do this.

Aug 26, 202513 min

Complex molecules in space – how they formed and how they got here

Samples from asteroids have helped build a theory of the origin of complex molecules and how they made it to Earth.

Aug 23, 202554 min

Lab Notes: The fall of the food pyramid

Fresh Australian dietary guidelines are due next year, and they’ll likely focus on the health of the planet as well as people.

Aug 19, 202514 min

Gene editing brings promise for genetic blood disorders

Small chemical groups inserted or removed from around DNA may affect gene expression and so be a way to control genetic blood disorders such as sickle cell anaemia and beta thalassemia.

Aug 16, 202553 min

Lab Notes: The native ants that take down cane toads

Meat ants don't sound like the most endearing Australian animals. These purple-red insects are super territorial, swarming and biting anything that threatens their nest. But it turns out they're not just aggressive, flesh-tearing fighters. They're also farmers, architects, and — best of all — cane toad exterminators.

Aug 12, 202511 min

Back to the dark ages for American research?

Is the US shooting itself in the foot, or shooting itself in the head? As Donald Trump removes funding for medical research, climate research and more, Matthew England reflects on how science will help us cope with a changing world.

Aug 9, 202554 min

Lab Notes: How do I avoid eating and breathing microplastics?

It's impossible to escape microplastics. They're in our food and water, and the air around us is teeming with them.So considering they're all around us, how can we minimise our exposure to tiny plastic fragments without resorting to living in a cave?

Aug 5, 202513 min

Climatic changes everywhere as the world’s oceans become hotter

A 100-yr flood is now a more regular occurrence in the German town of Passau, bringing widespread destruction, another local impact of a planet getting hotter.

Aug 2, 202553 min

Lab Notes: What's quantum mechanics ever done for me?

It feels like you can't go a week without hearing about some new quantum technology which promises to change our lives for the better. But quantum mechanics is already well and truly present in our daily life — and you don't even have to be a physicist to be using it.

Jul 29, 202514 min

Tracing the 100-year history of quantum mechanics

There was a famous debate. And truly weird ideas about how the universe works at a subatomic level. Shelby Traynor traces the history of quantum mechanics.

Jul 26, 202553 min

Lab Notes: Why some mums have all boys or all girls

If you've given birth to three daughters, what are the odds that your next child will also be a girl?One in two, right? Well … maybe not.The odds of having a fourth girl could be a fair bit higher than 50 per cent, according to a new study into families with single-sex sets of siblings.

Jul 22, 202514 min

Australia's forgotten inventor brothers

Discover the story of a pair of brothers who invented an early electric scooter, humidicrib, fax machine, Olympic scoreboard — and much more! — in their South Australian workshop from the 1930s to the 60s.We also learn about a trial that's generated energy from the waves, and unearth two rare photographs of a long-lost bandicoot species.

Jul 19, 202541 min

Lab Notes: Can bottom trawling be a sustainable way to fish?

A huge net, weighed down by heavy chains, swiftly sweeps across the ocean floor, scooping up everything in its path. This type of fishing, called bottom trawling, was illuminated in a new documentary, Ocean with David Attenborough. Bottom trawling is known for indiscriminately gathering all sorts of marine species, as well as damaging the sea floor. But with the practice producing around a quarter of the world’s wild-caught seafood, are there ways to make it more sustainable?

Jul 15, 202514 min

The trees that harness lightning to kill their rivals

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.

Jul 12, 202542 min

Lab Notes: The telescope redefining the Universe

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?

Jul 8, 202512 min

What does it take to bring back an extinct animal?

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.

Jul 5, 202540 min

Lab Notes: What we can learn from the world’s cleanest air

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?

Jul 1, 202513 min

A portrait of philosopher Karl Popper

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.

Jun 28, 202554 min

Lab Notes: How Ozempic stops food cravings

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?

Jun 24, 202511 min

Celebrating Charles Todd and the overland telegraph

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.

Jun 21, 202554 min

Lab Notes: The tiny beetle ravaging Perth's trees

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?

Jun 17, 202514 min

Professor Roger Short, reproductive biologist

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.

Jun 14, 202554 min

Lab Notes: What makes Sydney's cockies so clever?

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?

Jun 10, 202514 min

Hang on – we’re about to enter a wormhole!

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

Jun 7, 202553 min

Lab Notes: How microscopic algae can devastate ocean life

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?

Jun 3, 202513 min

Black white and green

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?

May 31, 202554 min