

The Supermassive Podcast
The Royal Astronomical Society
The UK's #1 space podcast.Science journalist Izzie Clarke and astrophysicist Dr Becky Smethurst whizz through the universe to explore the latest research with leading experts, dive to history from the society’s archives and take on your weird and wonderful questions about all things space. Can we gravitationally hitch-hike out of the solar system? Do we live in a multiverse? What is time? Plus Dr Robert Massey is on hand with his top star-gazing tips.Want to support the show? Join The Supermassive Club for exclusive content, star-gazing forums and ad-free listening... supermassive.supportingcast.fmAnd keep adding to The Supermassive Mailbox with your pictures and questions for the team. Send them to podcast@ras.ac.uk or follow them on Instagram, @SupermassivePod.The Supermassive Podcast is a Boffin Media production for the Royal Astronomical Society. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.
Episodes
Mentioned books

Nov 14, 2025 • 22min
BONUS: Supermassive Gone Rogue
Can JWST detect exomoons? How can black holes keep absorbing more mass? How big is our cosmic neighbourhood? And what is a rogue black hole?! Izzie, Dr Becky and Robert answer YOUR questions. You can add to The Supermassive Mailbox by emailing podcast@ras.ac.uk or messaging us on instagram @SupermassivePod. To support the show join The Supermassive Club and access ad-free listening, forum discussions, and member's only content. Hosted on Acast. See acast.com/privacy for more information.

Nov 1, 2025 • 47min
A Watery History of Mars
Join Robert Massey, Deputy Director of the Royal Astronomical Society, Joe McNeil, a Martian geologist, and Sian Prosser, an archivist, as they dive into Mars' fascinating watery history. Discover when Mars last had liquid water and the evidence for its rivers and lakes. Joe reveals the geological features shaped by water, while Sian shares intriguing historical maps and the myth of Martian canals. The trio also discusses water's significance for potential human missions and its implications for life, past and present, on the Red Planet.

Oct 16, 2025 • 33min
BONUS - Mercury, Gemini and Pringles
Andy Saunders, a photographer and author known for his expertise in space imagery, discusses his latest work, Gemini and Mercury Remastered. He shares insights on restoring original film, emphasizing how accessing the original frozen materials improved quality. Listeners will discover the human stories behind early space missions, with remastered images revealing the raw emotions of astronauts. Andy also reflects on the evolution of astronaut photography, including the first selfies taken in space, and highlights the stunning Earth visuals captured during Gemini missions.

Sep 24, 2025 • 47min
Don't Panic…but a solar storm could be a disaster
It's been 166 years since scientists recorded the world's most powerful solar explosion. Izzie, Dr Becky and Dr Robert Massey are big fans of anniversaries, so they investigate how the Carrington Event affected the Earth - and why something similar today could be devastating.Thanks to Kate Bond from the Royal Astronomical Society and Matthew West from ESA's Vigil for joining us on this episode.Join The Supermassive Club for ad-free listening and to share you questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod.The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.

Sep 9, 2025 • 14min
BONUS - Are we Living in a Black Hole?
What would happen if the supermassive black hole at the centre of our galaxy disappeared? Dr Becky is back to tackle your toughest of black hole questions. Alongside science journalist Izzie Clarke and Dr Robert Massey, the team also discuss what the night sky would look like in an elliptical galaxy…and are we living inside a black hole? Join The Supermassive Club for ad-free listening and share your questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod.The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.

Aug 26, 2025 • 47min
Supermassive Q and A...Live!
We are live at the National Astronomy Meeting in Durham with questions on everything from white holes and fuzzy stars, to solar storms and time travel. Science journalist Izzie Clarke is joined by Dr Ziri Younsi – part of the team that took the first picture of a black hole. Also on the panel, Jim Wild, Professor of Space Physics at Lancaster University and president-elect of the Royal Astronomical Society…and the one and only Dr Robert Massey, Deputy Director of the Royal Astronomical Society. Join The Supermassive Club for ad-free listening and share your questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod.The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.

Aug 12, 2025 • 19min
BONUS - What Shape is Space?
Izzie Clarke is joined by Dr Robert Massey to tackle your questions on the shape of space, measuring gravitational waves and planet spotting. We also have another - another! - astronaut: Producer Richard chats to British ESA astronaut Rosemary Coogan about her background as an astrophysicist. Join The Supermassive Club for ad-free listening and share your questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod.The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.

Jul 29, 2025 • 50min
Astronauts. Do we need them?
It’s a brave question to put to three astronauts live on stage but it’s a risk we are prepared to take. Recorded in front of a live audience at the UK Space Conference in Manchester, European Space Agency astronauts Tim Peake, Meganne Christian and John McFall discuss the future of human space exploration. Could robots or AI take their place? Will a trip to the Moon be as common as flying across the Atlantic? And can humans be trusted to not mess with Mars? Host Izzie Clarke asks the big questions, producer Richard Hollingham threatens the audience, and (soft sceptic) Dr Robert Massey is prepared to be unpopular as they contemplate the role of astronauts in the 21st century. Join The Supermassive Club for ad-free listening and share your questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod. The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.

Jul 19, 2025 • 13min
BONUS - Where are Earth's rings?
What would happen if asteroid Bennu impacted Earth? Can we timelapse Saturn's rings developing? Where are Earth's rings? Plus the solar wind on Mars... The Supermassive team answer YOUR questions. Keep sending questions to podcast@ras.ac.uk, on Instagram @SupermassivePod or join The Supermassive Club for ad-free listening and to support the show. Hosted on Acast. See acast.com/privacy for more information.

Jun 30, 2025 • 51min
Why isn't Pluto a planet?
Izzie and Dr Becky decided that little ol’ Pluto doesn’t get much attention anymore. So we’re giving the dwarf planet some time in the spotlight. Why isn't Pluto a planet? How small is it? And what makes it so unique?Thank you to Prof Alan Fitzsimmons from Queens University of Belfast joining us episode.Join The Supermassive Club for ad-free listening and share you questions, images and more. Or email them to podcast@ras.ac.uk or on Instagram @SupermassivePod.The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham. Hosted on Acast. See acast.com/privacy for more information.


