The Discussion: As we welcome in the New Year, we discuss the holiday season and your suggestions to replace the Guide to the Electromagnetic Spectrum section of the show. The News: Rounding up the astronomy news at the beginning of 2021, we have: Finding exoplanets that have a good chance of being able to see us The 'Missing Lithium Problem’ Chasing down the Hubble Constant A new method for detecting exoplanets Was there another dwarf planet in the inner solar system? Main News story: That intriguing radio signal found coming from the vicinity of Proxima Centauri. The Sky Guide: This month we’re taking a look at the great winter constellation of Auriga with a guide to its history, how to find it, a couple of deep sky objects and a round-up of the solar system views on offer in January. Q&A: We know there is a lower temperature limit (absolute zero), but is there an upper temperature limit? From Matt in California.