Life is strangely puzzling. Genetics and evolution have combined to give us a seemingly detailed account of life on earth. But science remains uncertain, and theories abound, about just how it began. We don't even have an agreed definition of what life is.                

As we explore the planets of the solar system researchers hope they will find evidence of life.  But would it be like life on earth?  Would we be able to identify it as life at all?  Or is the wish to find other life forms a science fiction fantasy that serves Hollywood well but has little to do with reality?

Biochemist and author of The Vital Question Nick Lane, Head of Future Missions at Airbus Ralph Cordey and leading British space scientist Monica Grady grapple with the mysterious puzzles of life.

In partnership with Airbus

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