We're marking 20 years of continuous occupation of the ISS with a look at its past, present and future, its many achievements, and what it's like to live on the floating laboratory.

Plus, astronomer and cosmologist Dr Emma Chapman discusses the history of the Universe and the moment the first stars began to shine throughout the cosmos.

Hosted on Acast. See acast.com/privacy for more information.

Learn more about your ad choices. Visit podcastchoices.com/adchoices