December 2021 4h302q

Hello? Is there anybody there? In the show this time, we talk to Tom Scragg about Pulsar timing arrays [07:43:00 - 00:41:43], Jonathan Wong rounds up the latest news [00:01:02-00:07:33] and we find out what we can see in the December night sky from Ian Morison, Haritina Mogosanu and Samuel Leske [00:55:19 - 01:19:20]. 3i2942