Cover art for podcast The Star Spot

The Star Spot

101 EpisodesProduced by Justin TrottierWebsite

The astronomy and space exploration podcast

episodes iconAll Episodes

Farewell

February 22nd, 2024

0:39

An important message from RadioPublic

Episode 185: Did a Supernova Cause a Mass Extinction?, with Brian Fields

September 28th, 2020

41:51

Feature Guest: Brian Fields

By now we are all familiar with the theory that an asteroid brought to an end the age of the dinosaurs, a period of domination that had lasted 167 million years. But asteroids are not the …

Episode 184: The Milky Way's First Fast Radio Burst, with Sandro Mereghetti

September 14th, 2020

41:06

Feature Guest: Sandro Mereghetti

Fast radio bursts are a new mystery in astronomy. These highly energetic events of unknown origin were first discovered in 2007 out in deep space. Now a team is reporting the first fast …

Episode 183: COVID-19 Meets the NASA Space Apps Challenge, with James Slifierz

May 25th, 2020

38:33

Feature Guest: James Slifierz

The NASA Space Apps Challenge is a feverish annual hackathon engaging teams of coders, scientists and storytellers around the world. Each year thousands of participants in over 75 countries …

Episode 182: Planet Nine or Black Hole One, with Jakub Scholtz

May 11th, 2020

40:21

Feature Guest: Jakub Scholtz

We’ve long believed that membership in the solar system’s planetary family was limited to those eight planets we learned …

Episode 181: Reports of Betelgeuse’s Death Are Greatly Exaggerated, with Emily Levesque

April 27th, 2020

41:30

Feature Guest: Emily Levesque

In December 2019, amateur and professional astronomers held their breath as the red supergiant Betelgeuse started dimming beyond anything on record, a sign the behemoth might be preparing …

Episode 180: Wormholes through Space and Time, with John Cramer

April 6th, 2020

51:18

Feature Guest: John G. Cramer

They are the stuff of science fiction, but wormholes are also the subject of intense scientific debate. Can wormholes …

Episode 179: Dreams of Floating Cities, with Geoffrey Landis

March 2nd, 2020

28:05

Feature Guest: Geoffrey A. Landis

When we think of terraforming, we probably envision turning the Red Planet blue. But Mars isn’t the only world in …

Episode 178 Sibling Rivalry at the Centre of the Galaxy, with Smadar Naoz

February 3rd, 2020

42:44

Feature Guest: Smadar Naoz

We’ve long known that most galaxies contain at their core a supermassive black hole that can be millions of times the mass …

Episode 177: The Case of the Missing Dark Matter, with Guo Chi

January 20th, 2020

33:56

Feature Guest: Guo Qi

Dark matter vastly overshadows ordinary matter in our universe. Wherever astronomers turn their telescopes they find galaxies dominated by dark matter. But all that changed recently with the first …

Episode 176: Second Genesis, with Jay Melosh

January 6th, 2020

43:54

Feature Guest: Jay Melosh

If we should find creatures crawling around Titan or swimming under the ice sheets of Europa or Enceladus, they will almost …

Episode 175: The Truth is Out There (at the University of Manitoba)

December 23rd, 2019

41:46

Feature Guest: Shelley Sweeney

The University of Manitoba has just acquired the largest collection of UFO related material. Prominent Canadian …

Episode 174: Fuzzy Dark Matter, with Lachlan Lancaster

November 25th, 2019

33:21

Feature Guest: Lachlan Lancaster

Quantum mechanics is strange. Until recently we could comfort ourselves with the belief that its odd properties were …

Episode 173: Discovering an Ancient Oasis, with William Rapin

November 11th, 2019

43:44

Feature Guest: William Rapin

Welcome to Sutton Island, here in the middle of a beautiful and rugged landscape consisting of shallow lakes filled with …

Episode 172: The Hubble Not-So Constant

September 16th, 2019

34:03

Feature Guest: Sherry Suyu

The Hubble constant, which measures the expansion rate of the cosmos, may not be a constant after all, and if that’s true it means we’re missing something big in our understanding of the …

Episode 171: Ploonets: When Moons Go Rogue, with Jorge Zuluaga

September 2nd, 2019

41:49

Feature Guest: Jorge Zuluaga

Astronomers have yet to confirm a single detection of an exomoon, that is a moon orbiting a planet outside our solar …

Episode 170: The Mystery of Fast Radio Bursts, with Vikram Ravi

August 19th, 2019

42:24

Feature Guest: Vikram Ravi

They come to us from deep space. They last a tiny fraction of a second. They contain as much energy as the sun’s total output in 80 years. Yet we still haven’t figured out what causes these …

Episode 169: Science at the Limits (Part 2)


August 5th, 2019

46:53

Feature Guest: Dan Falk

Scientists are finding themselves increasingly squeezed between academics sounding the limits of science and a public increasingly taken in by pseudoscience and conspiracy theories. Today we …

Episode 168: Celebrating Apollo + Science at the Limits (Part 1)


July 22nd, 2019

38:22

Feature Guest: Dan Falk

Today we’re joined here at The Star Spot by science writer Dan Falk.

We’ll start today’s interview with a commemoration of the 50th anniversary of the landing of humans on the moon and the …

Episode 167: Current in Space + The Best of The Star Spot: Nobel laureate Brian Schmidt

July 8th, 2019

31:30

Feature Guest: Brian Schmidt

Today we offer a best of from our vault here at The Star Spot. We dug back to a fan favourite, our December 2014 …

Episode 166: Nanodiamonds are Forever, with Jane Greaves

June 10th, 2019

28:07

Feature Guest: Jane Greaves

Remember that nursery rhyme, “Up above the world so high, like a diamond in the sky?” Well they were on to something, because it turns out diamonds - albeit nanodiamonds - are ubiquitous …

Episode 165: Landing on Europa, with Cynthia Phillips

May 27th, 2019

52:33

Feature Guest: Cynthia Phillips

In the 1970s, the Viking landers performed historic experiments aimed at detecting life in the Martian soil. The …

Episode 164: Jupiter's Ancient Odyssey, with Simona Pirani

April 29th, 2019

33:30

Feature Guest: Simona Pirani

The planet Jupiter occupies a position today that is far from its home 4.5 billion years ago, a destination resulting …

Episode 163: The Ring Worlds of Saturn, with Bonnie Buratti

April 15th, 2019

40:52

Feature Guest: Bonnie Buratti

The spacecraft Cassini went out in spectacular fashion, travelling through Saturn’s rings for a final death dive into …

Episode 162: The End is Nowhere Near Nigh, with Fred Adams

March 18th, 2019

36:42

Feature Guest: Fred Adams

If you thought the far distant future of our universe was going to be bleak, dreary and dark, well, you’d be right. But remember, the universe is still just a baby and it has many new …

Episode 161: The Boom Time of the Universe, with Rosemary Wyse

March 4th, 2019

32:24

Feature Guest: Rosemary Wyse

The universe is past its prime, by about 8 to 10 billion years. Sorry if you missed it. From the rate of star formation to the frequency of galactic mergers, the cosmos just isn’t what it …

Episode 160: Boom to Bust Part 1: Before the Beginning, with Katrin Heitmann

February 18th, 2019

32:22

Feature Guest: Katrin Heitmann

The Astronomy and Space Exploration Society, a student group based at the University of Toronto, hosted its annual signature symposium event on Friday, February 15th, 2019. This year’s …

Episode 159: Living on the Edge: Are We On the Boundary of an Expanding Universe?, with Ulf Danielsson

January 21st, 2019

40:24

Feature Guest: Ulf Danielsson

Our universe is big. But what if all of this was just one of an unimaginably large number of bubble universes. That’s the proposal by a group of scientists who recently introduced a new …

Episode 158: Telling Space Stories, with Rayna Slobodian

January 7th, 2019

27:01

Feature Guest: Rayna Slobodian

As we dream of space, we must remain anchored to humanity. Space exploration is a human story, and music may be the perfect medium to capture the emotive drama of discovery, risk and the …

Episode 157: How We Discovered Blazars Cause Mysterious Cosmic Rays

December 24th, 2018

50:00

Feature Guest: Darren Grant

A one hundred year old astronomical mystery may finally have been solved. Scientists have long wondered just what caused …

Episode 156: The Do-It-Yourself Spacesuit, with Cameron Smith

November 30th, 2018

49:34

Featured Guest: Cameron Smith

One of the challenges in building a future where humans are able to explore other worlds are the massive, clumsy and expensive spacesuits currently in use. Now enter into the picture …

Episode 155: Artificial Photosynthesis: Taking the Sun on the Road, with Katharina Brinkert

November 12th, 2018

37:50

Featured Guest: Katharina Brinkert

On Earth, we can thank the sun for making life possible. Now what if we could harness the power of the sun to make …

Episode 154: The Vatican Observatory: Astronomy and Faith in the Modern World, with Cosette Gilmour

October 29th, 2018

21:12

Featured Guest: Cosette Gilmour

The proper relationship between science and faith is a core question for the modern age. At the centre of this debate has often been the Vatican observatory. The fascinating history of …

Episode 153: A Reality Check on Terraforming Mars, with Bruce Jakosky

October 15th, 2018

33:19

Featured Guest: Bruce Jakosky

Don’t shoot the messenger. The terraforming of Mars has been the dream for many of us who long for a future where …

Episode 152: Alien Viruses, with Ken Stedman

October 1st, 2018

34:26

Featured Guest: Ken Stedman

They aren’t pleasant, but viruses are the most common form life on our planet. So why aren’t the world’s space agencies taking viruses seriously in their search for alien life. Today we’re …

Episode 151: New Moons of Jupiter, with Scott Sheppard

September 17th, 2018

32:41

Featured Guest: Scott Sheppard

On the hunt for the solar system’s elusive Planet X, a team of astronomers accidentally stumbled upon the discovery of …

Episode 150: At the Birth of Our First Newborn Planet, with André Müller

September 3rd, 2018

35:48

Featured Guest: André Müller

Astronomers have taken their first image of an infant planet still developing around a newly formed star. Today we’re joined here at The Star Spot by André Müller, whose team is busy …

Episode 149: The Question of Life on Mars, with David Hamilton

August 20th, 2018

44:43

Featured Guest: David Hamilton

The recent discovery of a lake of liquid water beneath the Martian south pole culminates a series of stunning …

Episode 148: Does Canada Have a Vision for Space Exploration?, with Chuck Black

August 6th, 2018

40:21

Featured Guest: Chuck Black

The Canadian Space Advisory Board was tasked with developing a plan to rejuvenate Canada’s declining world standing in …

Episode 147: Postcards From Home

July 23rd, 2018

12:20

Today we turn our telescopes back around to study ourself. Our own solar system is undergoing a conceptual revolution. From its chaotic birth to its …

Episode 146: Supernovae and the Evolution of Life on Earth, with Brian Thomas

May 28th, 2018

28:10

Feature Guest: Brian Thomas

We have this impression of our planet as isolated from the rest of the universe, our lives cut off from the drama …

Episode 145: Can Sibling Rivalry Explain This Supernova?, with Stuart Ryder

May 16th, 2018

35:41

Feature Guest: Stuart Ryder

When a massive star explodes in a supernova, it tends to gobble up all the attention. But what happens when that star has a binary companion with its own story to tell? That’s exactly what …

Episode 144: A Rough Upbringing: The Discovery of Stars in the Galaxy’s Core, with Farhad Yusef-Zadeh

April 2nd, 2018

35:12

Feature Guest: Farhad Yusef-Zadeh

The gravity, radiation and tidal forces at the very core of the Milky Way is kind of intense. That’s why astronomers have long doubted the possibility of star formation in such a hostile …

Episode 143: Planet Hunting Goes Extragalactic, with Xinyu Dai

March 19th, 2018

34:41

Feature Guest: Xinyu Dai

Last month astronomers announced the first ever discovery of extrasolar planets… in another galaxy! We’ve already confirmed …

Episode 142: Jupiter Transformed, with Scott Bolton

February 19th, 2018

39:16

Feature Guest: Scott Bolton

It’s our cosmic backyard, and yet our own solar system is still full of surprises. Now it turns out we were “totally …

Episode 141: The Mysterious Origin of Superpowerful Radio Blasts, with Jason Hessels

February 5th, 2018

33:06

Feature Guest: Jason Hessels

The one thing we thought we knew about fast radio blasts was that these mysterious one-off phenomena must be associated with some of the most cataclysmic events in the universe. Then …

Episode 140: How Humans Are Healing the Ozone Hole… and Might Just Solve Other Environmental Problems, with Susan Strahan

January 22nd, 2018

33:06

Feature Guest: Susan Strahan

While human activity is what created the ozone hole, scientists just announced direct evidence that human activity is …

Episode 139: Can Alien Life Hitch a Ride on Space Dust?, with Arjun Berera

January 8th, 2018

29:34

Feature Guest: Arjun Berera

Many of you are familiar with the idea of panspermia, the theory that life spreads itself throughout the galaxy by travelling from one world to another. We often think of big objects like …

Episode 138: Making Contact, with Jill Tarter

December 11th, 2017

53:52

Feature Guest: Jill Tarter

Alien hunting pioneer Jill Tarter often says the Search for Extraterrestrial Intelligence (SETI) is a way for us to hold a …

Episode 137: An Alien Asteroid in Our Solar System, with Alan Stern

November 27th, 2017

26:59

Feature Guest: Alan Stern

There’s an intruder in our solar system. This fall we were invaded by the first interstellar space traveller, an elongated, …

Episode 136: So You Want to Become an Astronaut?, with Cordell Grant

November 12th, 2017

44:46

Feature Guest: Cordell Grant

On June 17, 2016, the Canadian Space Agency launched the nation’s fourth astronaut recruitment campaign. 3,772 applications were received. One year later only two were chosen. Candidates …

Episode 135: Studying Cosmic Alchemy with Gravitational Waves, with Michael Landry

October 30th, 2017

43:30

Feature Guest: Michael Landry

The alchemists never did succeed in turning elements into gold and silver, and now we know why. It takes the merger of …

Episode 134: Searching for Aliens All-Sky All-the-Time, with Bill Diamond

October 2nd, 2017

49:17

Feature Guest: Bill Diamond

The Search for Extraterrestrial Intelligence, or SETI, is undergoing a revolution. There was once a time when the search …

Episode 133: Discovering an Asteroid Family Unchanged Since the Birth of the Solar System, with Marco Delbo

September 18th, 2017

45:05

Feature Guest: Marco Delbo

The main belt asteroids are among the most ancient of all bodies in the solar system. This summer astronomers announced …

Episode 132: Does Titan Harbour the Building Blocks of Life?, with Ravi Desai

September 3rd, 2017

34:36

Feature Guest: Ravi Desai

It was recently reported that Saturn’s moon Titan harbours complex chemistry the likes of which we’ve never before seen in …

Episode 131: Heavy Metal Explosion: The Rockstars of the Supernova World, with Matt Nicholl

August 21st, 2017

30:41

Feature Guest: Matt Nicholl

If you thought a supernova was powerful, time to meet its bigger brother, the superluminous supernova. They’ve been …

Episode 130: There Are How Many More Comets!?, with James Bauer

August 7th, 2017

32:10

Feature Guest: James Bauer

A team of astronomers studying long-period comets has just reached a startling conclusion. The solar system is home to …

Episode 129: Building on Gravitational Wave Astronomy, with Danny Steeghs

July 24th, 2017

36:09

Feature Guest: Danny Steeghs 

Gravitational wave astronomy was born less than 2 years ago when scientists made the first ever detection of …

Episode 128: A Shocking Theory About the Multiverse, with Dan Falk

July 10th, 2017

46:51

Feature Guest: Dan Falk

What if everything we see in our universe is not all that there is. The concept of the multiverse has captured the …

Episode 127: When Day Becomes Night, with Dan Falk

June 26th, 2017

45:11

Feature Guest: Dan Falk 

They once portended the collapse of civilization. Well the solar eclipse visiting North America this summer probably won’t …

Episode 126: SpaceX: A New Paradigm for Space Exploration, with Chris Prophet

June 12th, 2017

42:00

Feature Guest: Chris Prophet

SpaceX has blasted into the aerospace world, seemingly overnight, bringing with it a new low cost model for accessing space. But this paradigm shifting company has set its sights much …

Episode 124: The Best Candidate for Life, with Jason Dittmann

May 15th, 2017

29:17

Feature Guest: Jason Dittmann

Just last month, April 2017, astronomers announced the discovery of an extrasolar planet that has the best shot at …

Episode 123: Dark Matter Bridging the Galaxies, with Michael Hudson

May 1st, 2017

31:10

Feature Guest: Michael Hudson

If you’re like most people you probably think of galaxies as islands of stars, separate and isolated cities of our …

Episode 122: What if the Sun had a Sibling?, with Quinn Konopacky

April 17th, 2017

30:53

Feature Guest: Quinn Konopacky

The 14th annual Expanding Canada’s Frontiers symposium was hosted on January 27th, 2017 by the Astronomy and Space Exploration Society, a student group based at the University of Toronto. …

Episode 121: Scary Resolutions to the Fermi Paradox, with David Kipping

March 20th, 2017

24:47

Feature Guest: David Kipping

The 14th annual Expanding Canada’s Frontiers symposium was hosted on January 27th, 2017 by the Astronomy and Space Exploration Society, a student group based at the University of Toronto. …

Episode 120: When Galaxies Collide, with Gurtina Besla

March 6th, 2017

29:09

Feature Guest: Gurtina Besla

The 14th annual Expanding Canada’s Frontiers symposium was hosted on January 27th, 2017 by the Astronomy and Space Exploration Society, a student group based at the University of Toronto. …

Episode 119: From Knots to Donuts: Exotic Possibilities for the Shape of Our Universe, with Paul Sutter

February 20th, 2017

44:42

Feature Guest: Paul Sutter

Imagine travelling a very long way in space only to return just where you started, but upside down.  Or consider living in …

Episode 118: The Sun: Our Local Mystery, with Terry Kucera

February 6th, 2017

33:00

Feature Guest: Terry Kucera

We see it there in the sky every day of our lives. And yet our own local star, the sun, is still in many ways a mystery. …

Episode 117: The Universe is Going Green, with Matt Malkan

January 23rd, 2017

36:57

Feature Guest: Matt Malkan

Was the early universe green? That’s the startling discovery by a team of UCLA astronomers studying the youngest galaxies in our universe. Why green? That’s what I’ll try to find out when …

Episode 116: The Transit of Mercury, with Suzanna Nagy

January 9th, 2017

17:09

Feature Guest: Suzanna Nagy

Suzanna Nagy is President of the Royal Astronomical Society of Canada’s Vancouver Centre. In May 2016 she took advantage of a rare and unusual aerial phenomena - a clear sky in downtown …

Episode 115: Searching for Aliens with the World’s Biggest Telescopes, with Dan Werthimer

December 26th, 2016

43:54

Feature Guest: Dan Werthimer

Physicist Enrico Fermi once asked, if aliens exist in the galaxy, then just where is everybody. And for nearly 40 years the Search for Extraterrestrial Intelligence, or SETI, has sought to …

Episode 114: The Milky Way's Dark Matter Twin, with Roberto Abraham

December 12th, 2016

42:08

Feature Guest: Roberto Abraham

Imagine a galaxy that has a similar mass and volume to our own but where somebody turned off most of the stars. Meet …

Episode 113: Astronomical Observatories of Ancient Britain, with Gail Higginbottom

November 14th, 2016

44:30

Feature Guest: Gail Higginbottom

The British gave us the world’s first parliament. And now it turns out the ancient British may have been among the world’s first astronomers. Today we’re joined here at The Star Spot by …

Episode 112: Geysers on Europa, with William Sparks

October 31st, 2016

38:28

Feature Guest: William Sparks

Extraterrestrial life might be erupting into space from the surface of Europa. And a NASA mission to the icy world …

Episode 111: Can Supernovae Cause Extinctions!?, with Shawn Bishop

October 17th, 2016

53:36

Feature Guest: Shawn Bishop

We’ve long known we’re made of star stuff, but now it turns out that life on Earth might be even more intimately connected to events in deep space than we imagined. Scientists recently …

Episode 110: Peering Into the Void, with Nico Hamaus

October 3rd, 2016

28:41

Feature Guest: Nico Hamaus

Astronomers are no longer avoiding the void. Between the overdense zones of our universe, where most galaxies live, there exist vast regions of near emptiness that can stretch for hundreds of …

Episode 109: Rethinking Ancient Mayan Astronomy, with Gerardo Aldana

September 19th, 2016

42:56

Feature Guest: Gerardo Aldana

No the ancient Maya did not predict the end of the world. But they were among the world’s most advanced astronomers. …

Episode 108: The Closest Exoplanet Could Be Habitable, with Guillem Anglada-Escudé

September 5th, 2016

39:44

Feature Guest: Guillem Anglada-Escudé

Recently headlines buzzed with news of the discovery of the nearest exoplanet that we will ever find. And it …

Episode 107: Surveying the Cosmos, with Ludovic Van Waerbeke

August 22nd, 2016

24:53

Feature Guest: Ludovic Van Waerbeke

Large scale surveys of the universe are quickly becoming key to making new discoveries at the cutting edge of …

Episode 106: Is Our Solar System Unique? The Complex Process of Planetary Formation, with Aaron Boley

August 8th, 2016

36:40

Feature Guest: Aaron Boley

Is our solar system unique? That's becoming a major question for researchers. It turns out solar system formation is a …

The Star Spot Episode 105: Ad Astra?, with Zachary Fejes

July 25th, 2016

36:53

Feature Guest: Zachary Fejes

Imagine a starship that could take us out into the galaxy. Meet Icarus Interstellar, a nonprofit foundation working to …

The Star Spot Episode 104: The Great Terraforming Mars Debate: The Dream, with Chuck Black

July 11th, 2016

39:35

Feature Guest: Chuck Black

Ever consider moving to Mars? The Star Spot did. Along with the University of Toronto Astronomy and Space Exploration Society, we co-hosted a panel event exploring one of the most fascinating …

The Star Spot Episode 103: The Great Terraforming Mars Debate: The Ethics, with John Rummel

June 27th, 2016

37:15

Feature Guest: John Rummel

Ever consider moving to Mars? The Star Spot did. Along with the University of Toronto Astronomy and Space Exploration Society, we co-hosted a panel event exploring one of the most fascinating …

Episode 102: The Great Terraforming Mars Debate - Part 2: The Biology, with Olathe MacIntyre

May 30th, 2016

35:53

Feature Guest: Olathe MacIntyre

Ever consider moving to Mars? The Star Spot recently did. Along with the University of Toronto Astronomy and Space Exploration Society, we recently co-hosted a panel event exploring one …

Episode 101: The Great Terraforming Mars Debate - Part 1: The Science, with Paul Delaney

May 16th, 2016

39:36

Feature Guest: Paul Delaney

Ever consider moving to Mars? The Star Spot recently did. Along with the University of Toronto Astronomy and Space …

Episode 100: The Monster at the Centre of our Galaxy, with Feryal Özel

May 2nd, 2016

37:02

Celebrating 100 Episodes with you at The Star Spot!

Thank you for joining here at The Star Spot for our special 100th episode. I want to take a …

Episode 99 Pulsars and the Detection of Gravitational Waves, with Ingrid Stairs

April 18th, 2016

36:39

Feature Guest: Ingrid Stairs

In February scientists announced the first ever discovery of gravitational waves, tiny distortions in the fabric of space-time predicted by Einstein exactly 100 years ago. The Laser …

Episode 98: What Our Beliefs About Aliens Say About Us!, With Brian Trent

April 4th, 2016

49:34

Feature Guest: Brian Trent

Here’s the ultimate challenge for science fiction. How do you describe the appearance and behaviour of an intelligent alien …

Episode 97: Making Life in the Lab and Its Implications for Alien Hunting, with Lynn Rothschild

March 21st, 2016

37:37

Feature Guest: Lynn Rothschild

Are we alone in the universe? Think about it. Whatever the answer, it is one of the most profound and enduring questions humans have ever asked. The fact that we are on the cusp of being …

Episode 96: Did Universe's First Moments Set the Stage for Life?, with Fred Adams

March 7th, 2016

32:16

Feature Guest: Fred Adams

Could the very first moments of our universe hold the secret to the eventual emergence of life billions of years later? And …

Episode 95: Galaxy Clusters: The Largest Structures in the Universe, with Gil Holder

February 22nd, 2016

49:44

Feature Guest: Gil Holder

Have you heard of the Great Attractor or the Great Wall? The universe evolved from a hot dense not quite perfectly uniform …

Episode 94: What Alien Intelligence Means for Humanity, with Don Lincoln

February 8th, 2016

53:18

Feature Guest: Don Lincoln

Humanoid... grey in colour… almond shaped eyes. You all know exactly what I’m describing, but have you ever wondered just …

Episode 93: Will the Electric Sail Get Us to Deep Space? with Les Johnson

January 25th, 2016

33:42

Feature Guest: Les Johnson

In our last conversation, Pekka Janhunen, inventor of the electric solar sail, joined Denise at The Star Spot to explain …

Episode 92: Inventing the Electric Solar Sail, with Pekka Janhunen

January 11th, 2016

24:32

Feature Guest: Pekka Janhunen

The electric solar wind sail, or electric sail for short, is an advanced spacecraft propulsion technology that just …

Episode 91: Monster Galaxies of the Early Universe, with Henry Joy McCracken

December 14th, 2015

38:03

Feature Guest: Henry Joy McCracken

Last month scientists announced the shocking discovery of 574 monster galaxies from the ancient universe. There are surprisingly many such giant galaxies, and they seem to appear more …

Episode 90: Discovering the Furthest Object in the Solar System, with Scott Sheppard

November 30th, 2015

32:45

Feature Guest: Scott Sheppard

Recently astronomers discovered an object further than anything we’ve ever found in our solar system. This dwarf planet …

Episode 89: The Surprising Ubiquity of Ice in the Solar System and the Staggering Implications for Life, with David Paige

November 16th, 2015

35:42

Feature Guest: David Paige

There was once a time when scientists believed that beyond the Earth there lied a largely dry, barren and inhospitable …

Episode 88: Two's Company: From Binary Stars to Binary Supermassive Black Holes, with Pawel Artymowicz

November 2nd, 2015

53:49

Feature Guest: Pawel Artymowicz

Star Wars fans will be familiar with the planet Tatooine and its two suns. But as it turns out the majority of stars in the Milky Way galaxy live with a companion. And that’s led …

Episode 87: 147 Years of Astronomy Outreach, with Randy Attwood

October 5th, 2015

53:35

Feature Guest: Randy Attwood

Nearly a quarter of Americans confuse astronomy with astrology. And barely half know it takes the Earth a year to go …

Episode 86: When the Universe Began, with Wendy Freedman

September 21st, 2015

40:06

Feature Guest: Wendy Freedman

A long long time ago in every place at once, all of this began. But when exactly did the universe begin? And how quickly did it expand into the structure we see around us? Those numbers are …

Episode 85: The Cosmology Machine: Probing the Farthest Objects via the Keck Observatory, with Hilton Lewis

September 7th, 2015

34:51

Feature Guest: Hilton Lewis

The twin Keck Telescopes of Hawaii are the world’s largest optical and infrared telescopes. For twenty five years they have turned their eyes on the farthest and faintest objects in the …

Loading ...

Are you the creator of this podcast?

Verify your account

and pick the featured episodes for your show.

Listen to The Star Spot

RadioPublic

A free podcast app for iPhone and Android

  • User-created playlists and collections
  • Download episodes while on WiFi to listen without using mobile data
  • Stream podcast episodes without waiting for a download
  • Queue episodes to create a personal continuous playlist
RadioPublic on iOS and Android
Or by RSS
RSS feed
https://thestarspot.libsyn.com/radiopublic

Connect with listeners

Podcasters use the RadioPublic listener relationship platform to build lasting connections with fans

Yes, let's begin connecting
Browser window

Find new listeners

  • A dedicated website for your podcast
  • Web embed players designed to convert visitors to listeners in the RadioPublic apps for iPhone and Android
Clicking mouse cursor

Understand your audience

  • Capture listener activity with affinity scores
  • Measure your promotional campaigns and integrate with Google and Facebook analytics
Graph of increasing value

Engage your fanbase

  • Deliver timely Calls To Action, including email acquistion for your mailing list
  • Share exactly the right moment in an episode via text, email, and social media
Icon of cellphone with money

Make money

  • Tip and transfer funds directly to podcastsers
  • Earn money for qualified plays in the RadioPublic apps with Paid Listens