Atlantis undocks for flight home
The Atlantis orbiter detaches from the International Space Station for a return to Earth on Thursday.
Badger cull 'not cost effective'
Culling badgers is unlikely to be a cost-effective way of controlling cattle tuberculosis, scientists conclude.
Giant panda ancestor not so giant
The giant panda's earliest known ancestor was much smaller than its modern day counterpart, scientists say
Warnings of 'internet overload'
BBC Click investigates claims of the internet collapsing under pressure from the YouTube generation.
Robot sub explores giant canyon
Scientists investigate a vast underwater valley the size of the Grand Canyon - just off the coast of Portugal.
Arctic spring's 'rapid advance'
Spring in the Arctic is arriving "weeks earlier" than a decade ago, research shows.
Baby boom for endangered tigers
The endangered Siberian tiger gets a boost, with the birth in captivity of 84 cubs since March this year in China.
ISS computers concern Europe
The same computer systems troubling the space station are also on Europe's new lab and cargo ship.
Switching on to nanogeneration
Electronic devices that generate their own power can play a major role in the battle against climate change.
Desalination 'not the solution'
Turning salt water into drinking water is not a solution to tackle global water scarcity, a WWF report says.
Earth observer contract signed
Europe orders up Sentinel 1, the first bespoke spacecraft for its new global monitoring programme.
Brown 'planning science shake-up'
Gordon Brown may rejig UK departments in making science a top priority, the education secretary says.
Google's drive for clean future
Web giant Google is backing hybrid cars as part of its plan to make the entire firm carbon neutral by 2008.
Pluto status suffers another blow
Pluto loses its claim to being the biggest dwarf planet after being outranked by newcomer Eris.
Feeling the pinch of compact cities
Losing urban green spaces will affect people's quality of life and drive out many species of wildlife.
Human-animal embryo tests 'vital'
Medical research using hybrid human-animal embryos is "vital" in the fight against disease, scientists say.
Cash row at wildlife trade forum
A budget row dominates the final day of the Convention on International Trade in Endangered Species forum.
Male twins 'can reduce fertility'
A twin brother's male hormones can reduce his female twin's chances of giving birth, a study claims.
Esa, Nasa team up on key goals
The US and European space agencies signal their desire to co-operate on the biggest missions.
Amazon river 'longer than Nile'
Scientists in Brazil claim to have established that the Amazon, not the Nile, is the longest river in the world.