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EPISODE · Sep 28, 2023 · 27 MIN

Trilobite dinner

from Science In Action · host BBC World Service

What did a 465-million-year-old trilobite eat for dinner? And how can we possibly know? Archaeologist Per Ahlberg has used x-ray to peer into the guts of one ancient scuttling creature and worked out what it what was munching on in its final moments. From life in ancient earth rocks to potential life in space rocks, mineralogist and astrobiologist Bob Hazen has been training AI to spot signatures of life on Earth. He now hopes to use this tool on space samples. We also ask experimental particle physicist Jeffrey Hangst how antimatter, the last mystery of the universe, responds to gravity - was Einstein's theory of general relativity right? And the antiviral Covid medication, Molnupiravir, may be causing the virus to mutate. Theo Sanderson discusses how he figured this out and how concerned we should be. Presenter: Roland Pease Producer: Ella Hubber Editor: Martin Smith Production co-ordinator: Jana Bennett-Holesworth (Image: Fig. 1: Bohemolichas incola (Barrande, 1872). Credit: Kraft et al)

Episode metadata supplied by the publisher feed · Published Sep 28, 2023

What this episode covers

What did a 465-million-year-old trilobite eat for dinner? And how can we possibly know? Archaeologist Per Ahlberg has used x-ray to peer into the guts of one ancient scuttling creature and worked out what it what was munching on in its final moments. From life in ancient earth rocks to potential life in space rocks, mineralogist and astrobiologist Bob Hazen has been training AI to spot signatures of life on Earth. He now hopes to use this tool on space samples. We also ask experimental particle physicist Jeffrey Hangst how antimatter, the last mystery of the universe, responds to gravity - was Einstein's theory of general relativity right? And the antiviral Covid medication, Molnupiravir, may be causing the virus to mutate. Theo Sanderson discusses how he figured this out and how concerned we should be. Presenter: Roland Pease Producer: Ella Hubber Editor: Martin Smith Production co-ordinator: Jana Bennett-Holesworth (Image: Fig. 1: Bohemolichas incola (Barrande, 1872). Credit: Kraft et al)

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Trilobite dinner

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This episode is 27 minutes long.

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This episode was published on September 28, 2023.

What is this episode about?

What did a 465-million-year-old trilobite eat for dinner? And how can we possibly know? Archaeologist Per Ahlberg has used x-ray to peer into the guts of one ancient scuttling creature and worked out what it what was munching on in its final...

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