Who's afraid of big, bad numbers? In the show this time, we talk to Bobby Seagull about the mathematics of astronomy and popularising maths among the public [07:30.46 - 52:26.84], Michael Wright rounds up the latest news [01:32.27-07:15.94] and we find out what we can see in the December night sky from Ian Morison, Haritina Mogosanu and Samuel Leske [57:26.00 - 1:34:16].