Exocast-63b: How do planets form?

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 formation hold up to observational scrutiny? We might not be able to answer all (or any) of these questions definitively, and arguably we ended the discussion with more questions than when we started, but we had fun along the way!What did you think of the discussion? Join in the conversation in the comments below, and find us on Twitter. If you want to support the Exocast Podcast then you can Buy us a Coffee, or get your own merchandise at exocast.threadless.com. All merch sales and donations directly support the show by covering our web-hosting and editing costs, and are absolutely invaluable for keeping us on the air. A huge thank you to Carl N. for a very generous donation of $100, and to Jack in Oregon for his 7 coffees! Exocast is edited by composer/muscian Fergus Hall (https://fergushallcomposer.com) and supported in part by funding from the University of Bristol via H.Wakeford starter funds.