BBC Science/Nature News
Parasite may aid cattle TB spread - The spread of an animal parasite across the UK may be hampering moves to curb cattle tuberculosis, research suggests.
Rewritable DNA memory shown off - Researchers demonstrate a means to use sections of DNA as individually addressable, rewritable "bits" to store data in living cells.
Nasa chief hails new era in space - The head of Nasa has hailed a "new era" in exploration after the launch of the first cargo delivery to the space station by a private company.
TV remote control inventor dies - The inventor of the television remote control, Eugene Polley, dies of natural causes, aged 96, in a Chicago hospital.
Backing for nuclear waste store - The search for a storage site for the UK's high-level nuclear waste is likely to go ahead in Cumbria after an opinion poll shows residents are in favour.
Redefine drought, agency urges - Policy makers should drop the word "drought" as a blanket term and move to a sliding scale to describe dry conditions, the Environment Agency says.
Secret egrets nest for first time - Great white egrets are nesting in the UK for the first time at the Shapwick Heath National Nature Reserve in Somerset.
Modified wheat trial vandalised - A man has been charged with criminal damage following a break-in at the Rothamsted Research centre where a trial of GM wheat is being held.
Offshore gas leak plug 'success' - The operation to plug the gas leak on the Elgin Platform in the North Sea has been a success, oil firm Total says.
Row dogs dinosaur skeleton sale - A row breaks out over the sale of a rare dinosaur skeleton sold at auction in the US, with Mongolia's president saying it was smuggled out.
Two patients get eye stem cells - Two people in Scotland have stem cells transplanted into their eyes as part of a clinical trial to restore their sight.
Chemical weapon 'risk' at Kinloss - RAF Kinloss authorities knew the public could be at risk from chemical weapons buried near the base, according to documents obtained by BBC Scotland.
DNA to shed light on yeti claims - A UK-Swiss team is to use genetic testing to investigate the origins of remains claimed to have come from "yetis" and "bigfoot".
Chinese fakes 'used in US planes' - Vast numbers of counterfeit Chinese electronic parts are being used in US military equipment, a key Senate committee investigation finds.
'Cursing stone' found on island - A stone discovered by chance on the Isle of Canna is Scotland's first known example of a bullaun "cursing stone", experts reveal.
Millions watch Pacific eclipse - An annular eclipse, in which the Moon partially blocks out light from the Sun, has moved across east Asia and the western US.
Silicon trick for next-gen memory - Researchers reveal details of a promising way to make a fundamentally different kind of computer memory chip.
Japan launches S Korea satellite - Japan completes its first successful commercial launch of a foreign-made satellite early on Friday, marking its entry into the launch business.
'Superflares' from stars counted - Nasa's Kepler space telescope provides new insight on the colossal explosions that can occur in the atmospheres of some stars.
Space launch for chicken outfit - A rubber chicken wearing an outfit knitted from plastic bags by a woman from Rugby is to be launched into space by Nasa on Sunday.
Arctic melt releasing ancient gas - Scientists identify thousands of sites in the Arctic where methane stored for millennia is bubbling out, potentially accelerating global warming.
Japan urges cuts in power usage - Japan urges businesses and households to cut electricity use by up to 15% to avoid possible blackouts.
Rhino poaching risk at UK zoos - The threat rhinos face from poachers in some parts of Africa and Asia is now spreading to the UK.
Citizen science yields moth data - About 13,000 moths are captured and recorded by citizen scientists in a project described as the largest of its kind.
Wild spring weather baffles bugs - The wettest April in more than a century has caused problems for many UK butterflies, bees and other bugs, say conservationists.
Rio hotels agree summit price cut - The Brazilian government reaches a deal with Rio de Janeiro hotel owners to cut spiralling room prices ahead of a major UN summit in the city.
Whale meeting heads for discord - The annual meeting of the International Whaling Commission (IWC) in Panama is six weeks away and it's shaping up to be an important and perhaps defining moment.
Whales can adjust their hearing - Whales that use sound to navigate are able to adjust the sensitivity of their hearing to protect their ears from loud noises, say scientists.
Wildlife Trusts celebrate 100 years - The Wildlife Trusts which manage 2,300 reserves around the UK celebrate their centenary
VIDEO: How to water a farm with a phone - Spencer Kelly reports on how farmers in India are using mobile phone technology to help ease their workload.
VIDEO: Japan's radioactivity plaster filter - Researchers from Kinki university develop building material capable of absorbing caesium from radioactive contaminated water.
VIDEO: Nasa chief hails new era in space - The first ever commercial space cargo flight has left Cape Canaveral in Florida.
VIDEO: Skipper frees 40ft humpback whale - The skipper of a sight-seeing boat in Orkney is being hailed for his bravery after jumping into the water to save a humpback whale.
VIDEO: Millions see annular eclipse - Millions of people across the Pacific witnessed an annular eclipse, which resulted in a 'ring of fire'.
VIDEO: Robo-fish to 'police' the oceans - A robotic fish that can monitor water pollution in harbours is being tested in Spain.
VIDEO: Nature in turmoil from wet spring - The warm March weather and the wettest April in more than a century have been playing havoc with some of the UK's wildlife.
VIDEO: Physicist Higgs visits old school - One of the world's leading scientists has paid a visit to his old school in Bristol
Energy bill avoids carbon pledge - New UK energy bill avoids firm commitment to banish coal and gas by the 2030s
Robo-fish to 'police' the oceans - Could robotic fish soon be on patrol our oceans?
Sights and sounds from Chelsea 2012 - A tour round the floral highlights of Chelsea
The end of drug discovery? - Why drug firms are struggling to find new cures
Book's focus on old and rare trees - Celebrating the ancient and rare trees of Wales
Why killing infants can benefit animals - Why killing infants can benefit animals
Smaller engines drive petrol revival - How smaller engines are driving a petrol revival