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How to Time Travel
Dec 23, 2025 54 min

How to Time Travel

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 r...

BONUS - Slingshots, Christmas Presents & Alien Communication
Dec 15, 2025 24 min

BONUS - Slingshots, Christmas Presents & Alien Communication

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 electr...

Protecting Our Dark Skies
Dec 01, 2025 49 min

Protecting Our Dark Skies

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...

BONUS - Supermassive Gone Rogue
Nov 14, 2025 22 min

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 c...

A Watery History of Mars
Nov 01, 2025 47 min

A Watery History of Mars

Grab your space swimsuit, Izzie and Dr Becky explore Mars' wet past. When did the red planet have water? Where did it go? And were there canals on Mars? Thank you to Joe McNeil from the Natura...

BONUS - Mercury, Gemini and Pringles
Oct 16, 2025 32 min

BONUS - Mercury, Gemini and Pringles

It’s space book club time, featuring the latest book by author and photography expert Andy Saunders: Gemini and Mercury Remastered. Producer Richard enthuses about these mid-60s missions and we tal...

Don't Panic…but a solar storm could be a disaster
Sep 24, 2025 47 min

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 E...

BONUS - Are we Living in a Black Hole?
Sep 09, 2025 14 min

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...

Supermassive Q and A...Live!
Aug 26, 2025 46 min

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 ...

BONUS - What Shape is Space?
Aug 12, 2025 19 min

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 R...

Astronauts. Do we need them?
Jul 29, 2025 50 min

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...

BONUS - Where are Earth's rings?
Jul 19, 2025 12 min

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. ...

Why isn't Pluto a planet?
Jun 30, 2025 50 min

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...

BONUS - Why aren’t stars closer together?
Jun 11, 2025 17 min

BONUS - Why aren’t stars closer together?

What would happen if planets collided at a snail's pace? How much of Avengers Endgame regarding time is scientifically acceptable? Why aren't stars closer together? And the team discuss a list...

Is Time Real?
May 28, 2025 57 min

Is Time Real?

Start your stopwatches, set your timers, turn back your clocks because Izzie and Dr Becky are talking time. What is it? How, and why, do we measure it? And is time real or a human construct?!Izzie ...

BONUS - Mole People on Mars
May 13, 2025 16 min

BONUS - Mole People on Mars

Should astronauts live underground on the Moon or Mars? Black hole jets, rogue planets, the big crunch (or freeze) and the Ontario question. Dr Becky, Izzie and Dr Robert Massey tackle your corresp...

What is Gravity?
Apr 24, 2025 53 min

What is Gravity?

This episode is a weighty one. Some might say massive. It’s all about gravity. What is it? Why does it matter? Izzie and Dr Becky explore Einstein and Newton’s different ideas on the subj...

Returning to the Moon - with ESA Astronaut Matthias Maurer
Mar 31, 2025 52 min

Returning to the Moon - with ESA Astronaut Matthias Maurer

Climb aboard The Supermassive Rocket, Izzie and Becky are (talking about) sending humans back to the moon. Joining them on their trip is European Space Agency astronaut Matthias Maurer and Jac...

BONUS - Can A Star Orbit Another Star?
Mar 12, 2025 12 min

BONUS - Can A Star Orbit Another Star?

If black holes are so dense, how can gamma rays jet shoot out from it? At what point in space does our sun become invisible to the naked eye? And a question about CubeSats, black holes and det...