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Oxygen from the Primeval Slime

Cyanobacteria were at work 2.5 billion years ago, making oxygen

How cyanobacteria slime probably produced the Earth's first oxygen 2.5 billion years ago, much earlier than previously thought. Genetic modification may protect cowpeas from insects 鈥� new research at the International Institute for Tropical Agriculture (IITA) in Nigeria. Ancient Egyptian make-up suggests advanced chemistry. Why does the much smaller Moon obscure the Sun in an eclipse seen on Earth?

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24 minutes

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大象传媒 World Service Archive

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

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