The exoplanet podcast

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Recent Episodes

kepler-90 planetary system
July 20, 2020

Exocast-46b: Interview with Moiya McTier

This month Hugh, Andrew, and Hannah talk to astrophysicist, folklorist, and science communicator Moiya McTier. Moiya is an NSF graduate researcher at Columbia University in New York City and works to understand exoplanets from a galactic perspective. The Exocast team talks to Moiya about work from measuring the topography on an exoplanet by the effect that mountains and other features have in transit, all the way up to how the stars in the Milky Way

July 9, 2020

Exocast-46 d: Exoplanet News from May & June 2020

This month Hannah, Hugh, and Andrew go through the slew of exoplanet papers from discoveries, characterisation, and astrobiology

June 12, 2020

Exocast-45c: how many exoplanets are there?

In this episode, the team sits down to ponder the question how many exoplanets are there? At first, this might seem like a relatively straightforward question that can be answered by NASA’s Exoplanet Archive, but it becomes more daunting when considering, for example, the biases and limitations of our instruments that affect our ability to even detect and characterise many planets, how we define a ‘planet’, and whether or not we have surveyed enough stars

June 2, 2020

Exocast-45b: Special Guest Dr Baptiste Journaux

This month Andrew, Hannah, and Hugh chat with Dr Batiste Journaux (Research Associate in the Department of Earth and Space Science at the University of Washington) about all things icy and the role of different ices in our Solar System and exoplanets.

May 26, 2020

Exocast-45d – Exoplanet News: new discoveries, characterisations, and formation research

On Exocast-45d we bring you the news from across exoplanet research this month with new discoveries, characterisations, habitability and formation papers. In America, WFIRST has been renamed the Nancy Grace Roman Space Telescope in honour to the pioneering “Mother Hubble”, while in Europe the LIFE mission kicked off. We have lots of new exoplanets being discovered (from TESS, NGTS, WASP and RVs), and un-discovered, as was the case for Fomalhaut b. Characterisation studies have also

May 7, 2020

Exocast-44c: Can we ever image the surface of an exoplanet?

On this episode we ask the question: Can we ever image the surface of an exoplanet? Once we get all the definitions out of the way, like ‘what do we mean by map?’ and ‘what do we mean by surface?’, we take a deep dive into the realm of instrumentation to discuss the possibilities and limitations of our upcoming and near-future exoplanet imaging technologies. We touch on some of the avenues that astronomers & engineers

May 1, 2020

Exocast-44 d – April 2020’s exoplanet news

In this round-up of the month’s notable exoplanetary exploits, we cover all the headlines including: Proxima c (not) being directly imaged with Sphere – WASP-4b’s accelerating orbit – two new but very different sub-Saturn-mass planets – windspeed measurements on Brown Dwarfs – plus the influence of Gin & Vampires on exoplanets (from a couple of results very early this month). Also this month, check out our chat with Dr Sarah Casewell; and a discussion of

April 22, 2020

Exocast-44b: Special Guest Dr Sarah Casewell

This month Hannah, Hugh, and Andrew chat with Dr Sarah Casewell about her work on irradiated brown dwarfs. Sarah is an Earnest Rutherford Fellow at the University of Leicester where she has spent her career since undergrad. We chat all things brown dwarfs and what makes the irradiated ones so special to study. Sarah also shares her journey in academia from PhD, to postdoc, manager, and now fellow, all while becoming a mum (twice). We

March 30, 2020

Exocast-43 d: Exoplanet news

In the final of three mini-exocasts we will release this month, we cover some of the notable happenings in exoplanet science over the past month. On this episode we cover new planets from the TESS mission, a novel technique for detecting exoplanets using radio emission, and the end of the very productive KELT survey after 17 years. We also revisit K2-18b, which hit the exoplanet headlines last year after water vapour was definitively detected in

Laser sail by Kevin Gill
March 23, 2020

Exocast-43c: Can we ever travel to an exoplanet?

Exocast-43c – On this episode we ask the question: Can we EVER travel to an exoplanet?

March 16, 2020

Exocast-43b: Special Guest Natalia Guerrero

Special guest interview with Natalia Guerrero

Artist’s impression of a Venus-like exoplanet orbiting close to its host star. [CfA/Dana Berry]
February 21, 2020

Exocast-42b: Special Guest Dr Stephen Kane

Our final bite-size episode for this month features Andrew, Hannah, and Hugh chatting with Dr Stephen Kane, Associate Professor of Planetary Astrophysics in the Departments of Earth and Planetary Sciences and Physics and Astronomy at the University of California, Riverside. Stephen tells us a little about his need to use all exoplanet detection techniques, his love for our hot and cloudy next-door neighbour Venus, and he tries to sneak two planets into our adopted exoplanet list, before settling on one

February 12, 2020

Exocast-42c – Water in the Universe

In the second of three mini-casts this month, Hannah, Hugh, and Andrew gather around the virtual table to discuss that weird and wonderful molecule: H2O! The importance of water to our lives is undeniable, but in this show we chat about what makes water so chemically unusual and important in the study of astrophysics, exoplanet astronomy, and astrobiology. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2020/02/exocast_42_feature_water_jan2020-1.mp3Podcast: Play in new window | DownloadSubscribe: Android | RSS

February 5, 2020

Exocast-42 d – Exoplanet news

In the first of three mini-casts this month, we discuss all the recent exoplanet news from December 2019 & January 2020. That includes a temperate world around TOI-700d; Proxima Centauri c; three new planetary systems losing their atmospheres found with RVs; Circumbinary planets in Kepler and TESS; Iron in WASP-121b; Two different phase curves from TESS; and the atmosphere of Beta Pic b in glorious detail. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2020/02/Exocast_42_d_news_jan2020_v2.mp3Podcast: Play in new window | DownloadSubscribe: Android |

December 14, 2019

Exocast-41b: Erin May from observing to theoretical GCMs, Strange stars, #ExoCup2019 and the News

In Exocast-41b we talk to Dr Erin May about all things from observing to theoretical GCMs, Hugh discusses Strange transit signals, we review #ExoCup2019 and go through the months Exoplanet news.

November 19, 2019

Exocast-40b: Brett Morris talks starspots & astrobiology, the #ExoCup2019 is underway, plus exoplanet news

Hugh chats with his colleague at the University of Bern Dr. Brett Morris about starspots and their effect on exoplanet detection and characterisation, his experience with an astrobiology mission right here on Earth, and he recounts an exciting day in Bern earlier this year. Andrew discusses the labels we apply to the worlds we find, and the gang debates the usefulness of the terms for exoplanet science. And Hannah reads ADS so you don’t have

October 18, 2019

Exocast-39b: Paul Robertson talks RVs, the #ExoCup2019 live draw, plus the 2019 Nobel Prize

On the 39th episode of exocast: Andrew chats with UC Irvine’s radial velocity expert (and occasional planet-killer) Dr Paul Robertson in the Exocast Studio. Hannah outlines how the 2019 ExoCup is going to play out, and Hugh performs the draw for the first round “live” on air. And Hugh reports from the Exocast news desk on arXiv’s wackiest exoplanet papers from the past month, plus we chat about Mayor & Queloz winning the 2019 Nobel

September 13, 2019

Exocast-38b: Exoclimes V voxbox, NASA’s Flagship mission concepts, and exoplanet news

Exocast-38b: Exoclimes V voxbox, NASA’s Flagship mission concepts, and exoplanet news including water in the atmosphere of K2-18b

August 12, 2019

Exocast-37b: Live at TESScon, an intro to planetary protection, & the month in exoplanet news

Quizmaster Hugh takes to the conference hall at the 1st TESS Science Conference (TESSCon) to test the attendees’ exoplanet knowledge! Andrew compiles a (not very) top secret report-out on planetary protection. And Hannah covers this month’s news including the detection of an exoplanet magnetic field, new planets from TESS, a Kepler-load of 350 new candidates, as well as advances in exoplanet population statistics and atmospheric characterization. http://media.blubrry.com/exocast/p/www.exocast.org/wp-content/uploads/2019/08/Exocast-37b_v1.mp3Podcast: Play in new window | DownloadSubscribe: Android |

July 8, 2019

Exocast-36b: Live at AbSciCon, plus Spectroscopy 101, and the Exoplanet News

Exocast-36b: Live at AbSciCon, plus Spectroscopy 101, and the Exoplanet News

The exocasters

Meet the three podcasting exoplanet astronomers
Andrew Rushby
Andrew Rushby
Hannah Wakeford
Hannah Wakeford
Hugh Osborn
Hugh Osborn