Exoplanets, sure. Exo-moons too, apparently. But exo ... comets?! Yes indeed, they're a real thing, and we've known about them for ages! How do you spot something so tiny around another star, so far away? Emily has the insider knowledge, because it's something she's genuinely investigating in her job as an actual, real-life astronomer.

On the web: syzygy.fm

Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypod

Syzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.

Some of the things we talk about in this episode:

• Comets: dirty snowballs

• Exocomets

• Famous comets

• Shoemaker-Levy’s Jovian rendezvous

• Beta Pictoris, HyperMegaMall of astrophysics

• Exocomets around Beta Pic

• TESS, everyone’s favourite exo-hunter

Way, way back in the early epochs of Syzygy (ep 19 in Oct 2018 if you must know) we talked about the exciting prospect of spotting the first exomoon — a moon orbiting a planet orbiting a star that is not our own. It seemed reasonable to expect that six years later exomoons would be a thing we've discovered, and maybe even started a catalogue. But turns out, observing a minute signal on top of an already minute signal is hard. Emily outlines our best prospects for exomoon discovery.

On the web: syzygy.fm

Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypod

Syzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.

Some of the things we talk about in this episode:

• Syzygy ep 19: Moons, Exomoons & Moonmoons

• Does Kepler 1625b have an exomoon?

• Seems Unlikely …

• What about Kepler 167e?

• Volcanic exomoon around Wasp 49b?!

A short announcement: Syzygy is now seasonal! From now on we're going to release the podcast in seasons, and we're excited to announce the imminent release of the first episode of Syzygy Season Two. Yep. Two. Season One is everything we've done so far. Trust us, it's easier this way. Season Two is all about Exo-Stuff — exo-planets, exo-moons, exo-comets ... are they a thing? Apparently, yes. So keep an eye out in the days ahead for the new season of Syzygy.

Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypod

Syzygy is produced byChris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.

On the web:syzygy.fm | Instagram & Threads: @syzygypod