US to be 'pragmatic on climate'
America's lead climate negotiator tells the BBC that the US will only do what is politically and technologically achievable.
Russia to unveil spaceship plans
The Russian space agency is expected to unveil development plans for a next-generation manned spacecraft on Monday.
Sisters spread happiness - brothers breed distress
Sisters spread happiness in families while brothers breed distress as they internalise problems, experts believe.
What message, and whose, from Copenhagen?
The Copenhagen climate conference yielded calls for 'action, now' - but what action, and on whose behalf, was less than clear.
Arctic diary
Spirits rise as the Arctic summer approaches
Earth population 'exceeds limits'
Science advisor in the US State Department Nina Fedoroff says humans have exceeded the Earth's "limits of sustainability".
Clues to ancient invasion in DNA
Scientific evidence of an ancient movement of people from Ireland to Scotland are suggested by DNA techniques.
Not bird-brains. baby chicks do basic arithmetic
Newborn chicks are able to "count" objects as they are moved behind screens, say researchers.
BBC science wins 'Arthur' awards
The BBC wins two Sir Arthur Clarke awards for its coverage of space.
South Downs park agreed
UK ministers announce creation of a new national park for England, a mere 60 years after it was recommended.
Climate change 'fans Nepal fires'
Climate change blamed for Nepal forest fires
Putting up a fight
Row over nuclear waste dump in Australia's outback
'Supersize' lions roamed Britain
Giant lions were roaming Europe and North America as recently as 13,000 years ago, Oxford University scientists say.
Ice bridge ruptures in Antarctic
An ice bridge that holds in place an ice shelf the size of Jamaica snaps, heightening concern over the impact of global warming.
Polar footsteps
Team retraces Shackleton's journey
It may be a cold climate for meat - but the developing world's appetite is real
While meat is all too abundant in rich nations, it is an essential source of protein for millions in developing nations.
Thin speaker offers 'crisp sound'
A new way of delivering sound using flat speaker could be used in audio posters and make for clearer PA systems.
UK biodiversity still in decline
Conservationists criticise the government for failing to provide the resources to protect dwindling species.
'Stock-take' of garden creatures
UK conservation charities call on citizens to count any creatures that might be hiding in the flower beds.
Robo-scientist's first findings
A UK team unveils the first machine to have independently discovered new scientific knowledge.