Science On Top

The Australian podcast about science, health and technology news. Join Ed Brown and his panel of co-hosts each week as we talk about the latest and...

Science & Medicine, Natural Sciences, Medicine

Hosts: Ed Brown, Kirsten Banks 00:00:49 For the first time ever, astronomers have taken a photo of the silhouette of the event horizon of a black hole! 00:06:39 The Event Horizon Telescope captured 5 petabytes of data - which is a lot! 00:09:08 XKCD compared the size of the event horizo...
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Hosts: Ed Brown, Dr. Kate Naughton, Peter Miller 00:00:40 An extraordinary must-read article in the New Yorker has an in-depth look at the few hours after a meteor hit the Yucat√°n Peninsula and probably wiped out the non-avian dinosaurs. It also follows an amazing discovery that could answ...
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Hosts: Ed Brown, Penny Dumsday, Chris Curtain-Magee 00:01:22 In 450 B.C., the "Father of History", Herodotus, wrote a 23 line account of a type of Egyptian cargo vessel. This was widely thought to be a fabrication, but a discovery in an ancient Egyptian port city indicates the account was t...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:32 Some fish can survive the freezing cold waters of Antarctica thanks to a gene that makes anti-freeze. But how do fish in the Arctic, in the Northern hemisphere, also have the same gene? 00:08:33 Some people can smell when people are s...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Sean M Elliott 00:01:11 Science educator, communicator and performer Sean M. Elliott has a new show at the Melbourne International Comedy Festival, Tesla: Death Rays & Elephants! 00:11:00 For a long time it's been believed that having som...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr. Helen Maynard-Casely 00:01:16 NASA's InSight probe begins drilling into the Martian surface - and stops. 00:17:11 Twins are either identical (one egg splits into two copies) or fraternal (two eggs fertilised at the same time). But that's ...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:00:57 As the world becomes more and more urbanised, we hear a lot about the dangers to wildlife from humanity's sprawl. But new research finds Australia's koalas may actually be less stressed in cities - provided adequate green spaces are pr...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:18 Hyabusa 2, Japan's latest sample return mission, has briefly landed on the asteroid Ryugu. It's an ambitious mission looking at the building blocks of the solar system. 00:16:14 And what's the point of dragging samples all the way b...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Dr Cameron Webb 00:00:58 A review study published in the journal Biological Conservation has found that over 40% of insect species are threatened with extinction. 00:29:06 Queensland has seen record-breaking floods this year, and everyone kn...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:48 When researchers from the Max Planck Institute were looking at the teeth of an 11th or 12th century German woman they found tiny bright blue specks. This was a clue that illuminated the role women may have played in the history of book prod...
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2018 was a big year for science. Is saw the launch of the largest privately built reuseable rocket, the discovery a new organ, and understanding of the wombat's cubic poops. And we talked about all these stories and more on Science on Top. But not everything goes to plan, and this year was no ex...
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Hosts: Ed Brown, Penny Dumsday, Peter Miller 00:01:10 There's a planet orbiting star HD26965, exactly where Star Trek creator Gene Roddenberry said Spock's homeworld Vulcan would be. 00:04:16 A fresh analysis of 10 year old data finds the best evidence yet of water vapor venting from Jupiter's...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:24 The giant tortoise Lonesome George, the last of his species, was possibly as old as 102 when he died in 2012. Now sequencing of his DNA has revealed a number of genes that could give us clues about human life expectancy and particularly can...
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SoT 319 error

Science On Top 1m 13s

Our latest episode, 319 - Number Five Is Alive, had a pretty major glitch in that Lucas' track wasn't there at all. I realised the mistake shortly after posting it, and thought I had replaced it with the correct version, but obviously it didn't replace the file. I've re-uploaded it and tested it...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall, Jo Benhamu 00:02:27 NASA's InSight probe lands on Mars, with a slew of instruments to analyse what the red planet is made of. 00:17:43 Against all conventional knowledge, mitochondrial DNA is sometimes inherited from the father. 00:28:01 Professor H...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:10 Wombats - the cute, pudgy marsupials in Australia, have cubic poops. Square, angular blocks of poop. But how and why? We may now have a better understanding. 00:08:25 HD186302 is a star 184 light-years from Earth. And it's so similar to our ...
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SoT 317: Darknado

Science On Top 33m 25s

Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:02:00 There's a stream of stars hurtling through our region of the Milky Way galaxy, and they're bringing with them a "dark matter hurricane". It's probably nothing to worry about, though. 00:12:16 For the first time since 1889, the kilogram has ...
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Hosts: Ed Brown, Penny Dumsday, Mick Vagg 00:02:13 How serious is the opioid crisis in Australia? What's being done about it, and what new painkillers are on the horizon? Pain Specialist Professor Mick Vagg gives us the run down. 00:22:15 20 million years ago, dolphins had really long snouts - t...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:10 When a newborn baby smiles, there's always some spoilsport ready to tell you it's not a genuine smile, it's just a reflex. But new research finds that infant smiles are a lot more complex than that. 00:07:34 For the first time, astronomers ...
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Hosts: Ed Brown, Penny Dumsday, Lucas Randall 00:01:11 It's an old computer trick, but a gyroscope on the Hubble Space Telescope has been fixed - with a shake and a reboot. 00:08:22 The tiny worms in dung beetle brood sacks - which are sexually transmitted - are beneficial for the beetle larva...
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