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This week we’re looking at a political agreement that will hand back sovereignty of the Chagos Islands to Mauritius. In the 1970s, the UK removed the entire Chagossian population to make way for a US military base. The islanders have been fighting for their right to return ever since. If deal can be agreed, the islanders are hoping they will have the chance to go home.

And this got us thinking about all things home-related.

First up, we discover the intriguing reasons why you can’t smell your own home, then we take a closer look at our homes and all the creatures that live there, before finding out about the ‘home scars’ created by limpets.

Next we hear from Dr Nadescha Zwerschke, a scientist who spent time on Rothera research station in Antarctica. She reveals how she made this isolated outpost feel like home.

Also, we reveal that global talks to agree a reduction in plastics have collapsed, which could have an impact on all our homes from a pollution perspective.

And finally – a type of pasta that would be no good for your homecooked recipes.

Presenter: Marnie Chesterton, with Tristan Ahtone and Godfred Boafo
Producer: Alice Lipscombe-Southwell, with Harrison Lewis and William Hornbrook
Sound engineer: Gavin Wong