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Bipedal Human Ancestor found in Kenya

Scientists find 4.1 million-year-old bipedal hominid bones; hot universe model found in cold helium; malaria vaccine trials; discovery of the Comet Hale-Bopp; claims for Roswell 'alien autopsy' film.

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29 minutes

BBC World Service Archive

BBC World Service Archive

This programme was restored as part of the World Service archive project

Gravitational Waves

Gravitational Waves

Gravity and ripples in the fabric of space time - what do these mean for us?

Podcast