Help us make Syzygy even better! Tell your friends and give us a review, or show your support on Patreon: patreon.com/syzygypodSyzygy is produced by Chris Stewart and co-hosted by Dr Emily Brunsden from the Department of Physics at the University of York.On the web: syzygy.fm | Twitter: @syzygypodThings we talked about in this episode:Atlas: comet C/2019 Y4ATLAS, the Asteroid Terrestrial-impact Last Alert SystemHubble watches Atlas breaking up!Comets have two tailsGreat Comets in historyComet McNaught in 2007Comet Hale-Bopp in 1997Halley’s Comet in 1986