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In Our Time: Science Podcast Transcripts

BBC Radio 4 · 293 episodes with transcripts

Scientific principles, theory, and the role of key figures in the advancement of science.

Spoken has transcripts of 293 In Our Time: Science episodes, with the speakers named. The newest listed here is from February 19, 2026.

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293 episodes of In Our Time: Science have transcripts. Fetch them all as speaker-labeled Markdown in one script — 1 credit each, and re-fetching one you already have is free:

archive.sh
curl -s -H "x-api-key: YOUR_KEY" \
  https://spoken.md/podcasts/463701000/episodes \
  | jq -r '.episodes[] | "\(.id) \(.title)"' \
  | while IFS=' ' read -r id title; do
      slug=$(echo "$title" | tr '[:upper:]' '[:lower:]' | tr -cs 'a-z0-9' '-' | sed 's/-*$//')
      [ -f "${id}-${slug}.md" ] && continue
      curl -sf -H "x-api-key: YOUR_KEY" \
        -o "${id}-${slug}.md" \
        https://spoken.md/transcripts/$id || rm -f "${id}-${slug}.md"
      sleep 0.34
    done

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Latest In Our Time: Science transcripts

The Mariana Trench

February 19, 2026

Misha Glenny (0:00)

This is In Our Time from BBC Radio 4, and this is one of more than 1000 episodes you can find in the In Our Time archive. A reading list for this edition can be found in the episode description wherever you're listening. I hope you enjoy the programme. Hello. In 1875 in the Western Pacific, the crew of HMS…

Heather Stewart (1:41)

Yeah, fantastic. The Mariana Trench is what's called a subduction trench. And what it looks like is this long, curved deep within the Western Pacific. And that's formed as you introduced through a process of plate tectonics. So we have denser oceanic lithosphere, so the Pacific Plate, that plate encompasses the…

And that's about 98 times the height of St. Paul's Cathedral, which is just, it's a really hard number to sort of visualise in your head when you start to think about these sort of deep water environments.

Misha Glenny (2:52)

And how long is it exactly?

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