The UK government has been urged to speed up the pace of action on climate change by the Confederation of British Industry.
The US military has test-fired a laser weapon system housed aboard a 747 plane.
A leading UN scientist says countries must move to tackle the threat from asteroid strikes.
Scientists announce promising trial results for a new drug for jet lag pill that can reset the body's natural sleep rhythms.
A British team of scientists have pinpointed a "tumour suppressor" gene which protects against lung cancer.
A major international study says palm oil plantations reduce plant and animal diversity, and do little to reduce carbon emissions.
An archaeological dig in Russia has unearthed female figurines, carved tools, and a cone-shaped carving of unknown purpose.
Brazil's environment minister has plans to reduce deforestation in the Amazon region by up to 70%, as UN climate talks begin.
A rare amber necklace believed to be about 4,000 years old is uncovered in Stockport.
The first comprehensive inventory of the animals that live in a polar regions is completed, scientists report.
More cuts in greenhouse gases by 2020 are needed if the UK is to play its part in combating climate change, an advisory body will say.
Diets and creams which claim their antioxidant properties could cheat the advances of time may be worthless, researchers suggest.
UN climate change talks open in Poland, seeking details on plans for emission cuts and forest protection.
Scientists have halted the advance of heart disease in mice - and even reversed some of its effects.
Nasa's space shuttle Endeavour returns to Earth, landing in California after an eventful mission.
About 150 pilot whales die in a mass stranding in a remote coastal area of the Australian island of Tasmania.
The destruction of the Amazon rainforest in Brazil has accelerated for the first time in four years, officials say.
France's vision for the future of EU agricultural policy is opposed by the UK, Sweden and Latvia.
Cameroon creates a new national park for the Cross River gorilla, the world's rarest, ahead of a key conservation meeting.
About 1,000 representatives of leading religions gather in Sweden for a summit on climate change, said to be the first of its kind.