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 messages and your night sky photos to [email protected] or find us on Instagram @SupermassivePod. Or why not support the show by joining The Supermassive Club? You'll get ad-free listening and access to The Supermassive forum.

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.

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 space debris. It’s called Our Fragile Space and it’s on for free outside of the Royal Astronomical Society until 10th May 2026.

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

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... is extremely jealous of them both!

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

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 owner, Stuart Clark. For more accessible astronomy, the recommend you read their brilliant articles on astronomynow.com.

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

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 Chris Miller about Project Hail Mary and Becky reveals what she chatted about with Ryan Gosling.

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

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 Galli from Institut d'Astrophysique de Paris.

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

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.

To support the show, join The Supermassive Club for ad-free listening, forum access, and extra content from the team.

If you have a question for the team - or have a boat we can borrow! - get in touch via [email protected] 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.

The Supermassive Podcast is back for 2026, and we've got a MEGA Q&A. 

What happens when two nebulae collide? Where did Neptune and Uranus form? What’s the procedure for a medical emergency on the ISS? And more. Plus, Izzie, Dr Becky, Robert and Richard cover everything you need to know ahead of the launch of Artemis II. 

And here are the links to things we promised you in this episode... 

• Our episode "How to Time Travel"
• Our episode "Do We Live in a Multiverse?"
• Richard's brilliant Space Boffins podcast

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

Fire up your flux capacitor and dematerialise your Tardis because The Supermassive Podcast is traveling in time. Is it possible? How does it work? And, crucially, which films got the physics right (or wrong!)? 

Thank you to Dr Emma Osborne from the University of York, and Dr Alfredo Carpinetti from IFLScience for their help on this episode. Alfredo's upcoming book, Invisible Rainbows, will be available for pre-order soon. 

Here's the Time Travel in Fiction Rundown from Minute Physics

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team. And email your questions to [email protected] or follow us 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.

What would it be like to feel gravitational waves? How are satellites protected from extreme solar storms? How do gravity slingshots work? Are aliens potentially communicating outside of the electromagnetic spectrum? Plus Izzie, Dr Becky and Robert share their annual Christmas present recommendations.

Keep sending your questions to [email protected], Instagram @SupermassivePod or members can post on The Supermassive Club's forum.

Join The Supermassive Club for ad-free listening, forum access, and extra content from the team.

The Supermassive Podcast is a Boffin Media production. The producers are Izzie Clarke and Richard Hollingham.

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.

What are the threats to our dark night skies? And what needs to be done to protect them? Izzie, Dr Becky and Robert explore this important topic and head outside (...and the weather was not on their side!) 

Thank you to Dr Samantha Lawler at the University of Regina in Saskatchewan and Andy Lawrence, the Regis professor of astronomy at the University of Edinburgh. 

Don't forget to join The Supermassive Club for ad-free listening, forum access, and extra content from the team. 

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.