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The John Batchelor Show

PREVIEW. HEADLINE TOPIC: Accidental Discovery of Ionic Liquid and its Implications for Extraterrestrial Life GUEST NAME: Professor Sara Seager GUEST NAME AND TITLE: Professor Sara Seager of MIT, astrophysicist, planetary scientist, and physicist

The John Batchelor Show

John Batchelor

Books, News, Society & Culture, Arts

4.52.8K Ratings

🗓️ 15 September 2025

⏱️ 3 minutes

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Summary

PREVIEW. 
HEADLINE TOPIC: Accidental Discovery of Ionic Liquid and its Implications for Extraterrestrial Life

GUEST NAME: Professor Sara Seager

GUEST NAME AND TITLE: Professor Sara Seager of MIT, astrophysicist, planetary scientist, and physicist

PREVIEW: Professor Sara Seager details her post-doc Rajna Agarwal's accidental discovery of ionic liquid while simulating Venus's environment. The experiment involved evaporating concentrated sulfuric acid and organic molecules, expecting complete evaporation under low pressure. However, a persistent tiny liquid residue was found, identified as an ionic liquid. This unexpected finding, not water, could profoundly impact the search for organic life beyond Earth or reveal new insights into life on other planets, particularly in Venus's sulfuric acid clouds. Seager will discuss this further on "Hotel Mars" with David Livingston.
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Transcript

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0:00.0

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Visit sumup.co.uk to learn more. This is John Bachelor. Ionic fluid. A conversation with Professor Sarah Seeger of

0:28.0

MIT, an astrophysicist, a planetary scientist, a physicist who discovers things in labs.

0:35.7

And in this instance, Professor Seeger describes the

0:39.0

discovery by a colleague of hers of ionic fluid, an accidental discovery that may lead to

0:46.3

revelations about life on other planets or may lead us in a new direction entirely for the

0:52.1

search for something organic besides us in the cosmos.

0:57.4

Here's the professor to describe the accidental discovery and the mystery of it all.

1:02.8

Ionic fluid, not water, ionic fluid.

1:07.3

More of this later tonight at Hotel Mars with David Livingston.

1:12.1

Here's the professor.

1:15.2

You know, we could have had a hypothesis about the potential formation of this ionic liquid,

1:20.8

but in fact, my postdoc, Ratchan Agrival, who's a professor in India now, actually discovered

1:26.5

this by accident.

1:28.9

We are actually,

1:35.3

believe it or not, trying to send space missions to Venus to find signs of life or life itself in the Venus clouds. That is a whole other topic. But one thing we need to do on Venus is to collect

1:41.1

the cloud particles and condense them so we could collect a whole bunch of cloud

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