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This week’s guide to science on the telly and radio:
Voyager: to the Final Frontier
BBC 4, 10.55-11.55pm
Dallas Campbell tells the story of the Voyager space mission, which saw two probes leave Earth in 1977. Both craft are still sending back data and Voyager 1 is about to become the first man-made object to leave the Solar System.
Image credit: BBC
Tues 30 October
Operation Iceberg: Birth of a ‘Berg
BBC 2, 9-10pm
Chris Packham leads an expedition to the Arctic to explore the creation, life and death of icebergs. In this first episode, Chris is joined by physicist and oceanographer Helen Czerski on a visit to Store Glacier in Greenland to find out why it produces so many icebergs. They also examine the inside of an iceberg and witness the moment a vast block of ice breaks away from the ‘berg.

Guts: the Strange and Wonderful World of the Human Stomach
BBC 4, 9-10pm
A tiny pill camera shows us the inner workings of our digestive system.

Operation Iceberg: Life and Death of the ‘Berg
BBC 2, 9-10pm
On a mission to find out more about the destruction of a huge iceberg floating 50km off the Canadian coast, Chris Packham and Helen Czerski feel the power of the forces at work when a chunk breaks off beneath their feet.
Material World
BBC Radio 4, 4.30pm
Quentin Cooper explores topical scientific issues.