The latest stories from the Science & Environment section of the BBC News web site.
Updated: 18 min 43 sec ago
The figurehead from a 15th century ship, the Gribshunden, has been raised from the Baltic Sea near Ronneby, Sweden, more than 500 years after it sank.
Are Nasa's robotic spacecraft plans in trouble?
Researchers have developed a robot that can build "baby" robots that get progressively better at moving without any human intervention.
The first ever recordings from inside the human brain during REM sleep suggest that flickering eyes accompany "scene changes" in our dreams.
Engineers develop a robotic system that evolves and improves its performance.
Dutch artist Daan Roosegaarde's project cleans polluted air and allows the smog particles to be turned into jewellery
IAAF retests from the 2005 and 2007 World Championships return "adverse findings" for 28 athletes tested for doping.
How does Australia's pledge on carbon emissions compare in the run-up to the Paris climate summit?
A second attempt to reintroduce an extinct bumblebee to the UK is proving successful, conservationists say.
Skywatchers are in for a dazzling display as the annual Perseid meteor shower reaches its peak on Wednesday.
Why is Japan restarting the Sendai reactor?
A survey examining 200,000 galaxies in multiple wavelengths offers the best estimate yet of how fast the Universe is fading.
Astronauts on board the International Space Station (ISS) sample some space-grown lettuce.
A toxic leak of wastewater that has turned a Colorado river mustard yellow is three times larger than US officials had originally estimated.
Drought sensitive butterfly species could be driven to extinction across the UK by 2050 according to new research.
Technology being developed at the nuclear spent fuel facility at Sellafield, Cumbria, could prove highly lucrative in the growing business of industrial clear up.
Bee-killing Asian hornets spreading across Europe are fatally attracted to a carnivorous plant, French experts say.
A group of divers in Cornwall are engaged in an underwater clean-up, in a bid to stop plastic rubbish damaging marine life.
Six suspected tiger poachers are shot dead in a gunfight with Bangladeshi police in the world's largest mangrove forest, the Sundarbans.
At least 170 people have been killed in Pakistan in this year's monsoon rains.