Seeing Double. In the show this time, we talk to Amaury Triaud about exoplanets, especially the TRAPPIST-1 system [06:24 - 34:49], Fiona Porter rounds up the latest news [01:10-06:16] and we find out what we can see in the December night sky from Ian Morison and Haritina Mogosanu [1:17:27 - 1:41:25].