BBC News Science & Environment

22 March 2011 Last updated at 14:59 ET

Tests shed light on life originsMiller archive materials (Scripps Institution)

Scientists examine the results from 1950s experiments to show how the foul-smelling hydrogen sulphide may have been an important precursor in the chemistry that eventually led to life on Earth

Four-qubit quantum device (E Lucero)Quantum computing takes big leap

A best-in-class demonstration of a quantum computing device shows that, after years of development, real quantum computers may be on the horizon.

Half-empty church'Extinction threat' to religion

Decades of census data, alongside a mathematical model, suggest religion in nine secular countries is being driven to extinction.

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