x-change 2013 - day 2
Welcome to Day 2 at the x-change and what an exciting day it was!
How do you follow a show like Monday's? With sharks, Bronze Age combat, explosions, and a stuffed kittiwake! Plus brain training and Britain's favourite topic - the weather.
If you missed today's show you can listen to the podcast presented by BBC journalist and Space Boffin Richard Hollingham. You can listen to the whole show or select a speaker from the playlist.
And you can also read our volunteers' blog for a first hand account of the day's show.
To find out who featured check out the the full show line-up
Remember, we have a complete new line-up each day so visit the x-change pages to see what we have install for the day...