exocast

We cover this month’s most exciting exoplanetary (and solar system) news: Andrew tells us about details of the proposed “ Venus Life Finder ” mission which would go beyond ESA & NASA’s selected Venus missions to directly sample for organic molecules in the temperate regions of Venus’ atmosphere using an interplanetary balloon! Hugh talks about how analysis of the multi-planet systems found by...

Hugh, Hannah & Andrew turn their attention to a simple question with a very complicated answer: our favourite! This month we are pondering how planets form . What do we know about planet formation from the Earth, observations from our Solar System, and of distant exoplanetary systems? Where are the gaps in our understanding of the processes involved? Do the theories and models of planet format...

The latest news hot off the Exocast news desk for July/August 2022, another exciting month for exoplanet science: Andrew takes some time to discuss the life and influence of Dr James Lovelock, the co-originator the Gaia Hypothesis, who died recently. His news this month takes the form of two independent but neatly connected papers on the topic of ‘chirality’: ‘The Chiral Puzzle of Life’ by Globus...

This month Hannah, Andrew & Hugh are joined by NASA Goddard's space telescope expert, Dr. Knicole Colón. Fresh from her NASA TV appearance unveiling JWST's first exoplanet spectrum to the world, the JWST deputy project scientist for exoplanet science gives us a behind-the-scenes look at the big day, as well as how the team got JWST ready for science. She also discusses the ongoing TESS mission sea...

The latest news hot off the Exocast news desk for June/July 2022, a very exciting month for exoplanet science: Hannah gives us a run-down of some of the long-awaited first images from JWST , including a spectrum from the atmosphere of WASP-96b from the NIRISS instrument showing clear water features. The team try (and fail) to contain their giddiness at the prospect of entering a new era of exoplan...

Hugh, Hannah & Andrew pick sides to debate astronomy’s deepest divide. Are you with Hugh on the side of the observers, who insist that it is only with new telescopes, instruments and data that we can reveal physical properties of exoplanets and develop our understanding of the universe. Or are you, like Andrew, on the side of the theorists, who ensure that we can deeply understand the physical...

The latest exoplanet news hot off the Exocast news desk: Hannah gives us a run-down of the Exoplanets IV conference held recently in Las Vegas, at which both her and Hugh were in attendence, including summaries of interesting sessions and presentations. Hugh presents a great new paper from Panahi et al. 2022 entitled “ The Detection of Transiting Exoplanets by Gaia ” that demonstates the Gaia spac...

In this episode of Exocast the team are fortunate to be joined in the virtual studio by Dr Jennifer Burt, NASA/JPL’s Extreme Precision Radial Velocity Investigation Scientist , for an extreme discussion of the radial velocity technique for finding and characterising exoplanets. Jenn gives us a comprehensive and enthusiastic rundown of the method, US and European RV surveys, supporting current and...

Join us for this months news episode where the Exocast team delve into new discoveries, characterisation, and astrobiology investigations to learn all about the latest research being published in exoplanets. Andrew takes us through some new astrobiology work “ Metabolically diverse primordial microbial communities in Earth’s oldest seafloor-hydrothermal jasper “ from Papineau et al. 2022 Hannah co...

This month Hugh, Hannah, and Andrew go back to basics to discuss the diversity and complexity inherent in the study of planetary atmospheres. Exocast-59b touches on how we define an atmosphere and takes a sojourn through the varied and beautiful atmospheres of the Solar System, as well as a journey back through time to consider the long evolution of the atmosphere of our planet. How does an atmosp...

In this months News episode Hugh, Hannah, and Andrew each discuss a paper from the past month of the latest exoplanet research including, JWST test data analysis, Oxidative Earth, and multi-star systems.

In this episode the Exocast team talk with Dr Megan (Meg) Schwamb about her work from the solar system to distant exoplanets and citizen science. The show is jam packed with exciting science and enough ice cream analogies to build an Exocast Parlour. We discuss in detail the process of going from a strange looking light curve posted in PlanetHunters Kepler to publication and bonafide planet, how y...

In this episode the Exocast team take us through three of the latests studies in exoplanet research touching on biosignatures, planet formation and disruption, and the effects of space weather on close-in exoplanets. Join them to learn the latest in exoplanet science!

This month Hugh, Hannah and Andrew discuss a deceptively simple question about the limits of planetary size... Exocast-57b takes you from measurements of exoplanet radius and mass, the difficulty with the IAU definition of planets, to the formation of brown dwarfs and stars. They even dive into the importance of size on habitability, the size limits of a rocky world compared to a gaseous world, so...

In this episode the Exocast gang chat with Dr Mark McCaughrean , who is a Senior Advisor for Science & Exploration at the European Space Agency (ESA), as well as a James Webb Space Telescope (JWST) Science Working Group Interdisciplinary Scientist, about the recent launch, deployment and commissioning of JWST. Mark shares scientific and personal highlights of his long involvement with the tele...

That’s right it is that time of year again where the Exocast team pit planet against planet in the Twitter poll show-down: ExoCup! In this episode Andrew, Hugh, and Hannah look at the rundown of exoplanets that were mentioned the most in the past year of research publications and the top 23 join last years ExoCup2020 winner WD-1856b to fill out the first 24 exoplanets in Pots 1, 2, and 3. They the...

The exocast team covers the latest news in Exoplanets including a critical look at the so called "Hycean" worlds recently proposed to be the best places to look for life, a detailed run-down of the Elements magazine issue on "Geoscience beyond the solar system", and some new and refined exoplanet measurements and discoveries.

In this episode the exocast team discuss how we observe exoplanets from the ground, how is it different from space, where do we put the telescopes and why.

In Exocast-52c Hannah, Andrew and Hugh review the exoplanetary field over the last month, including a fix for Hubble's ageing computer, a host of habitability updates from the Goldschmidt conference, a new transiting planet around a naked-eye star, and results from testing exoplanet hazes in the lab.

In this episode the Exocast crew are excited to talk with expert science communicator, JAXA space scientist, and master of computer simulations, Professor Elizabeth Tasker. During the hour long discussion we talk about how Elizabeth transitioned into planetary research from a degree and PhD in galactic simulations, the journey from the UK to the US, Canada and now in Japan. Where the idea for her...

In Exocast-52c Hugh, Andrew, and Hannah take us through three reviews of papers that have been recently published in the planetary/exoplanet literature.

In this episode the Exocast team discuss Earth’s twin planet, Venus, and its link to exoplanetary science. We start with an overview of the past, present and future of Venusian exploration, from the first Soviet probes to the three newly-selected missions (DAVINCI+, VERITAS and EnVision) which will explore the atmosphere and surface of Venus more thoroughly than ever before. Then we turn to the op...

In this episode the Exocast gang are joined by veteran exoplaneteer Dr Mark Marley from NASA Ames. During a nearly hour-long discussion, we probe Mark's experience of early exoplanet discovery and characterisation efforts in the 1990s, his work on clouds and atmospheric circulation models, 'ice' giants, brown dwarfs, his leadership role with the LUVOIR space telescope concept, as well as his cheer...

In this month’s news rundown Hugh, Hannah, and Andrew provide a summary of three interesting papers that appeared on their radar during February/March 2021: Hugh takes a look at The Chemical link between stars and their rocky planets by Vardan Adibekyan and others. Andrew summarises Lithologic Controls on Silicate Weathering Regimes of Temperate Planets  by Kaustubh Hakim and team. Hannah dons a t...

In this months discussion Hugh, Hannah, and Andrew discuss the question: Why do we study exoplanets? The team take a look at their own personal motivation and how they each came study exoplanets, as well as diving into the technological applications of astronomy, and the philosophy behind the big questions in astronomy. Astronomy has been at the root of huge technological advances, from the X-ray...