The edge of the Solar System
Listen to the latest episode of the Radio Astronomy podcast from the makers of BBC Sky at Night Magazine.
How far away is the edge of the Solar System? What even is 'the edge'? How do we know it's there? In this month's episode we take a look at the outer limits of our planetary neighbourhood.
Plus: we talk to Keith Hayward of the Royal Aeronautical Society about the Chinese space programme and reveal how to make the most of August's Perseid meteor shower.
Listen to the episode on your favourite podcast provider, including Acast.
Iain Todd is BBC Sky at Night Magazine's Staff Writer. He fell in love with the night sky when he caught his first glimpse of Orion, aged 10.