Episode details
Available for over a year
Dr Karl answers your questions on Space: Where is the universe expanding into? What's beyond it? Why are some orbits different?
Programme WebsiteUse BBC.com or the new BBC App to listen to BBC podcasts, Radio 4 and the World Service outside the UK.
Available for over a year
Dr Karl answers your questions on Space: Where is the universe expanding into? What's beyond it? Why are some orbits different?
Programme Website