Ocean Explorers

Ocean Explorers

From Rare Earth by BBC Radio 4

February 27, 2026 · 54 min

About this episode

The episode discusses the legacy of the British research ship Challenger and the future of ocean exploration.

150 years ago the British research ship Challenger returned from a three and a half year voyage that changed the world. Plucking species from every ocean, at depths never explored before, the Challenger kick-started the science of oceanography and paved the way for a world connected by undersea communication cables. To celebrate the Challenger's legacy, Helen Czerski and Tom Heap are at the world's biggest ocean science conference in Glasgow to ask what the next 150 years may hold. Is the age of the human explorer over, replaced by robots and DNA sampling, or is there still a space for wonder as we explore the depths of our planet's oceans? With Tom and Helen at the AGU Ocean Sciences Meeting are three top ocean explorers- Kirsty McQuaid from Nelson Mandela University in South Africa, Murray Roberts of Edinburgh University and Sofie Spatharis of Glasgow University. Producer: Alasdair Cross Assistant Producers: Toby Field and Rebecca Rooney Rare Earth is produced in collaboration with the Open University

People in this episode

Hosts: Helen Czerski, Tom Heap

Guests: Kirsty McQuaid, Murray Roberts, Sofie Spatharis

Topics covered

  • oceanography
  • exploration
  • marine science
  • technology
  • communication cables

Keywords

  • Challenger
  • ocean exploration
  • marine species
  • undersea communication
  • ocean science conference

Mentioned in this episode

Organizations: Nelson Mandela University, Edinburgh University, Glasgow University, BBC Radio 4

Places: Glasgow

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