A study of mobile phone calls suggests that women call their spouse most frequently earlier and over a longer period of time than men.

Researchers create artificial DNA and RNA molecules that interact with their natural counterparts, hinting at future "synthetic genetics".

Over-consumption in rich countries and rapid population growth in the poorest both need to be tackled to put humanity on a sustainable path, a report says.

There is still no evidence mobile phones harm human health, says a major safety review for the UK's Health Protection Agency.

Renewable energy sources must become "financially sustainable" if they are to meet the world's needs, David Cameron is to say.

The director of the Wellcome Trust is among the candidates being considered for the post of UK chief scientific adviser.

Pygmy sharks, which glow to camouflage themselves, reveal some of the evolutionary origins of luminescent sharks, say scientists.

Brazil's Congress approves controversial changes to the country's forest code which environmentalists say will spur Amazon deforestation.