Mr Max and Chris are back out for an evening walk in the Sun, rejoicing in the nearly once-in-a-lifetime view of the aurorae that much of the world enjoyed last week. We find out what causes the Northern and Southern lights, why last week was quite so good, and what the chances are of a similar show in the near future. We respect the lights, while being very good and Not Barking at things. There are loads of great aurora pictures in the Sky at Night Flickr group: https://www.flickr.com/groups/bbcskyatnight/?rb=1 Aurorawatch is here: https://aurorawatch.lancs.ac.uk/ and for those in the US there's the NOAA site here: https://www.swpc.noaa.gov/products/aurora-viewline-tonight-and-tomorrow-night-experimental A reminder that you can buy Chris' book here: https://www.amazon.co.uk/Our-Accidental-Universe-Discovery-Asteroids/dp/1911709186 (It's out in the US in June, so you'll have to be patient if you're there!)

Mr Max and Chris are back out under surprisingly wintery skies. We check in on our old friend Betelgeuse, follow a new friend for a while with #nobarking, and talk about why you need goats in your chariot, why one star is really four, and what to spot with binoculars. You can read more about Capella here: https://www.skyatnightmagazine.com/advice/star-capella And buy Chris' book here: https://www.amazon.co.uk/Our-Accidental-Universe-Discovery-Asteroids/dp/1911709186 (It's out in the US in June, so you'll have to be patient if you're there!)

On a cloudy damp evening in Oxford, Chris and Mr Max are braving the weather. Max is keen on a jam jar, while Chris tells us the story of world’s greatest radio astronomer, Grote Reber. Missiles and parrots also feature. The story is included in Chris’s new book, ‘Our Accidental Universe’, out in March and available from Amazon (https://blackwells.co.uk/bookshop/product/Our-Accidental-Universe-by-Chris-Lintott/9781911709183) or wherever you buy your books. (Unless you’re in the US, in which case your version, ‘Accidental Astronomy’ will be out in June)