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The Supermassive Podcast

The Supermassive Podcast

The Royal Astronomical Society 115 Episodes Jul 24, 2026

The UK's #1 space podcast. Science journalist Izzie Clarke and astrophysicist Dr Becky Smethurst explore the latest research with leading experts, dive into history from the Royal Astronomical Society's archives, and answer listener questions about space. Dr Robert Massey provides star-gazing tips. The podcast is a Boffin Media production for the Royal Astronomical Society.

Episodes

Q&A: Could Dark Matter Be Space Vampires?
Q&A: Could Dark Matter Be Space Vampires? Jul 24, 2026 49:38 It's Q&A time! Izzie Clarke, Dr Becky Smethurst and the Royal Astronomical Society's Dr Robert Massey dive into The Supermassive Mailbox to answer your brilliant and ridiculous questions.🌑 Do meteors hit the Moon during showers?⏳ Could black holes create different 'eras' of time?☄️ Where did the Kuiper belt come from?🧛‍♂️ If space telescopes use mirrors and vampires don't have a reflection, co
Can Time Travel be sped up? What is the Bootes Void? And G'day to Australians
Can Time Travel be sped up? What is the Bootes Void? And G'day to Australians Jul 10, 2026 19:42 What is the Bootes Void? Why do we only see one side of the Moon? Can time travel be sped up? And what's the smallest amount of visible space debris? The Supermassive Podcast team answer your questions... And work on their Australian accents!?For the first time ever, you can now watch this episode on YouTube.For ad-free listening, join The Supermassive Club. Every member helps keep the show runnin
What the heck are neutrinos?
What the heck are neutrinos? Jun 23, 2026 54:52 Is this the toughest subject we’ve ever tackled? Izzie certainly thinks so and it’s even making Dr Becky and Dr Robert's brains hurt. Helping them to make sense of these ‘weird and interesting’ particles are Dr Kirsty Duffy at the University of Oxford and Director of the Paris Astrophysics Institute, Professor Kumiko Kotera. For ad-free listening and to view Izzie's trajectory to be
Why Is There Motion in the Universe?
Why Is There Motion in the Universe? Jun 12, 2026 18:34 What happens if two diamond core stars collide? Will the Moon drift away from Earth? Why is there motion in the universe? And why we need a space AND time machine. Izzie, Dr Becky and Robert dive into The Supermassive Mailbox to answer your questions. For ad-free listening and to view Izzie's trajectory to becoming a better astronomer, join The Supermassive Club. Every member helps keep the show r
How Do Space Telescopes Work?
How Do Space Telescopes Work? May 28, 2026 1:03:49 Nancy Grace Roman. Ariel. The next generation of space telescopes are here. Astrophysicist Dr Becky Smethurst and science journalist Izzie Clarke explore how they work, what they can tell us and why they might unravel our current understanding of the universe. Plus Dr Robert has your stargazing tips for June. Thank you to Dr Tom Barclay from NASA's Roman telescope and Dr Chris Pearson from RA
Did Gravity Wipe Out The Dinosaurs?
Did Gravity Wipe Out The Dinosaurs? May 13, 2026 19:24 How do we calculate a black hole's event horizon? Does Mercury's tail impact Earth? Can we name a planet Rupert? And did gravity wipe out the dinosaurs? Izzie Clarke & Dr Becky Smethurst dive into the rather whimsical Supermassive Mailbox to answer your questions.Want to name an Exoworld? Here's the IAU website to start a campaign: https://nameexoworlds.iau.org/Send your questions, whimsical m
Into the Space Debris Swamp
Into the Space Debris Swamp Apr 30, 2026 49:01 Izzie & Dr Becky think that space needs a spring clean, so this episode is all about space debris. What is it? How big of a problem is it? And what is being done to remove it? With thanks to PhD student Megan Perks from the University of Southampton, who studies how safe all these new satellite constellations are, and photographer Max Alexander, who has created an exhibition all about spa
Our Artemis II Debrief
Our Artemis II Debrief Apr 15, 2026 33:07 What. A. Mission. The Supermassive Team are in AWE of the Artemis II Crew and the people that helped them to loop around the Moon. From scientific aims to societal impact, Izzie Clarke, Richard Hollingham and Dr Robert Massey reflect on this latest step to returning to the Moon and their experiences of watching it unfold. Richard was at the launch, Robert is pen pals with Reid Wiseman, and Izzie..
When Space Goes Rogue....
When Space Goes Rogue.... Apr 1, 2026 47:20 The Supermassive Team are going rogue (more so that usual!) This time, it’s all about the non-conforming objects in space. Black holes, planets and the other rogue objects Izzie and Dr Becky can think of... Plus, Dr Robert Massey takes on your questions and shares his stargazing tips for April. A big thank you to Gavin Coleman from Queen Mary's University, and Astronomy Now magazine editor and own
Black holes in the lab and meeting Ryan Gosling
Black holes in the lab and meeting Ryan Gosling Mar 18, 2026 38:27 It’s a massive bonus episode this month with both listener questions and an extended interview with the producer/directors of the new Ryan Gosling film: Project Hail Mary. Dr Becky and Dr Robert are joined by editor Richard to tackle questions on creating a black hole in the lab, how long a planet lasts and the size of the biggest black hole. Guest reporter, Sue Nelson, chats to Phil Lord and
What is the Hubble Tension?
What is the Hubble Tension? Feb 26, 2026 1:05:11 There's a crisis in cosmology when it comes to understanding a little thing like the acceleration of our universe, aka The Hubble Tension. And in this episode, Izzie Clarke and Dr Becky Smethurst are digging into what this is and (trying to) explain the science behind it. A huge thank you to our guests, (Nobel Prize winning-) Professor Adam Riess from John Hopkins University and Professor Silvia G
2026: The year in space... And at sea?!
2026: The year in space... And at sea?! Feb 11, 2026 26:24 What are the biggest space missions of 2026? And what are the best stargazing opportunities this year? The Supermassive Team - Izzie Clarke, Dr Becky Smethurst, Dr Robert Massey and Richard Hollingham - share their astronomical excitement for the year ahead and ponder if they should charter a boat for the August eclipse.Thank you to listeners Anne Edgeworth and Karolina who inspired this episode.T

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