Star's fans raised a staggering $3 million for victims of the disaster.
Researchers find first evidence that elephants reassure others in distress.
The Ganges River in India is full of drug-resistant bacteria, a new study shows.
Melting sea ice blamed for waiver in jet stream that caused extreme weather.
Outernet wants to provide a free global internet that can bypass internet censorship.
Best photos of the day: 18 February 2014.
Renowned Egyptologist Horig Sourouzian found the missing quartzite blocks.
Asteroid the size of three football fields hurtled past Earth at 12.37km/s.
Pigs are shot and blown up in trauma training before they are operated on and killed.
Researchers find complex life on Earth can develop where there is extremely little oxygen.
Official silence on building collapse believed to have been caused by weight of snow.
People returned to their homes today after safety fears over a 20ft sinkhole in Croxley Green
Researchers say asteroids are 150,000 times more powerful than atomic bombs
Asteroid to have close encounter with Earth on 17 February.
Scientists say volcano has potential to erupt if temperature rises over 750C.
It has been so cold for so long that the Great Lakes are almost completely frozen.
Aerial photographs of flooded homes along the river Thames.
Homes in Croxley Green were evacuated after a 2ft sinkhole appeared in Oatridge Gardens.
Best photos of the day: 17 February 2014.
Crew fantastic but Marco Polo poorly maintained says victim's wife.
Forecasters say UK could face record-breaking temperatures this summer, after one of wettest winters on record.
Thousands of mirrors create 500C deadly 'thermal flux' that appears to be killing birds in flight.
National Science Foundation report reveals surprisingly low levels of scientific knowledge among Americans.
Two skiers missing and three injured after avalanche near Aspen, Colorado.
Extreme weather caused by climate change is a national security issue, warns Labour leader.
Extreme weather claims life of 77-year-old Bob Thomas.
Brazilian boy falls from tree on to two-foot metal spike.
Designers call for Burj Khalifa in Dubai to be covered in clingfilm – for art's sake.
30-foot sinkhole opens up in Hertfordshire after weeks of heavy rain.
Royal Princes help army pals in surprise visit to flood zone in Datchet, Berkshire.