Satisfaction is enough for chimpanzees to enjoy completing puzzles regardless of food rewards.
Multi-millionaire Dennis Tito, who paid an estimated $20 million to be the first 'space tourist', plans to launch a manned mission to Mars.
Astronauts fielded questions from around the world in the first live Google+Hangout web chat with Nasa.
NASA is hosting a first-of-its-kind interactive session with astronauts aboard the International Space Station (ISS)
Asian tiger mosquito, Spanish slug and zebra mussel head list of riskiest natural invaders.
Mother's milk for newborn immediately after birth boosts baby’s immune system, says Save the Children.
A meteor was reportedly spotted over San Francisco, hours after one exploded over central Russia and an asteroid flew past Earth.
Seahorses exhibition opened at ZSL London Zoo on 16 February, featuring 172 long and short-snouted specimens of this rare and fascinating creature.
$2bn mission will send Clipper to explore the buried oceans of Europa
26 per cent rise in the number of gay men having unprotected sex leads to 76 percent rise in HIV cases since 1990
As the 2012 DA14 became the largest asteroid to pass within 17,200 miles of Earth, scientists have warned of the danger of future impacts.
Photographs of the impact of the Russian meteorite.
Hunt for life-saving antibiotics has plumbed new depths.
Tranquillizer Oxazepam in waterways causes behavioural changes in fish, Swedish researchers find.
Biologists warn Asian needle ant's bite can kill humans as invasive species spreads across US and drives out other invasive populations.
Just around Valentine's Day, a new photo released by the National Optical Astronomy Observatory revealed a strange nebula, far away in space resembling a red rose.
Meteor in Central Russia's Ural region has triggered UFO scare and mass panic.
An asteroid - 2012 DA14 - will come within 30,000km of Earth on the evening of 15 February. This is the closest that a Near Earth Object has ever been
The owl, named Rinjani Scops, is found in Lombok, near Bali in Indonesia
Sea slugs dispose of their penises about 20 minutes after mating.
The Beeb should be praised for broaching the subject of electronic cigarettes, but more detail is required on this crucial innovation, says Dick Puddlecote.
Mayor of London's call for further science and technology investment provides timely boost for UK's economic future.
HPA confirms 10 cases of novel coronavirus identified globally. Five deaths reported.
Exploratory craft drills into Martian surface to and collect rock samples for Nasa scientists.
Object is largest to pass so close to our planet in 15 years, say Nasa scientists.
Doctors report 2,016 confirmed cases of measles in England and Wales in 2012.
Single people are stigmatised by couples in the same way left-handed are by right-handers, according to a new study.
A 10 percent increase in alcohol prices significantly reduced deaths from drinking.
Controversial G-spot procedure involves injecting filler into wall of vagina.
An injection that practically eliminates alcohol cravings could help reduce the 2.5 million alcohol-related deaths each year.