19: Moons, Exomoons & Moonmoons
from syzygy Hosted by Chris Stewart
Want to 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. Visit us at syzygy.fm or find us on Twitter: @syzygypod Things we talk about in this episode: Kepler mission: https://www.nasa.gov/mission_pages/kepler/ Kepler’s been put to sleep: https://www.nasa.gov/feature/ames/kepler-put-into-sleep-mode-as-telescope-s-pointing-performance-degrades Hubble’s gyro problems: https://arstechnica.com/science/2018/10/hubble-space-telescope-taken-offline-after-gyroscope-failure/ Exomoon paper: http://advances.sciencemag.org/content/4/10/eaav1784 Moons of the Solar System: https://solarsystem.nasa.gov/moons/in-depth/ Saturn’s moonlets: https://www.theguardian.com/science/2017/jan/31/saturns-rings-contain-millions-moonlets-new-nasa-images-reveal-cassini Jupiter’s rings: https://en.wikipedia.org/wiki/Rings_of_Jupiter Multiple star systems: https://www.universetoday.com/132154/multiple-star-systems/ Pluto & Charon: https://www.nasa.gov/feature/pluto-and-charon-new-horizons-dynamic-duo Animations of the Pluto-Charon binary: http://pluto.jhuapl.edu/Multimedia/Animations/Pluto-System.php
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What this episode covers
The Kepler mission found loads of exoplanets, and now astronomers are digging deeper into the data in the search for exo*moons* around those planets. All of which sends Chris and Emily on a deep dive into the detail of definitions: what's a moon, anyway? Do we know what a planet is? Or a star? Do astronomers actually understand anything at all?!
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