Hidden face discovered beneath Edgar Degas' Portrait of a Woman
X-ray technique allows scientists to unveil picture that has been known about since 1920s.
Altruistic humpback whales around the world are stopping orcas killing seals
Scientists observe 115 cases of humpbacks interfering with killer whale hunts.
Birds recorded sleeping while flying for the first time
GPS and ECG recorders reveal frigatebirds even enter REM sleep while flying for weeks on end.
Genetic mutation for fire tolerance may have given us the edge over Neanderthals
Better hydrocarbon receptor made humans up to 1,000 times more desensitised to smoke toxins.
Most alien life on Earth-like planets hasn't evolved yet - but it will in 10 trillion years
Calculations show chance of life evolving on other planets is far more likely in distant future.
Milky Way has huge gaping hole at its centre where no stars reside
Studying Cepheid stars will help astronomers better understand the structure and evolution of our galaxy.
Zika advice: Everything you need to know about travelling abroad while pregnant
CDC warns pregnant women not to visit Wynwood in Miami after 10 more cases reported in state.
Alaska's woolly mammoths drove themselves to extinction 5,600 years ago
As St Paul Island shrank access to freshwater became increasingly scarce, eventually wiping out the population.
Mystery of female orgasm solved by scientists
Aristotle puzzled over it now scientists have found it helps reproduction by stimulating ovulation.
Apollo astronauts five times more likely to die from a heart attack
Deep space radiation exposure believed to be responsible for increased risk of cardiovascular disease.
Most ancient cancer case discovered in 1.7 million-year-old hominin
The earliest case of cancer was discovered in the foot bone of a mystery hominin species.
Super scanner reveals brain of 200 million-year-old dinosaur
Synchrotron scans of most complete fossil ever discovered to reveal how this primitive dinosaur species lived
Great Red Spot appears to be the heating force behind Jupiter's unusually warm upper atmosphere
Massive storm in Jupiter's southern hemisphere could solve Jupiter's 'energy crisis', scientists say.
'Thrifty' gene mutation that boosts fast storage fuels Samoa obesity problem
Scientists suggest natural selection favoured first Samoans who could store fat effectively.
Tens of thousands of babies with Zika birth defects will be born before current outbreak ends
Over 93 million people in the Americas will have been at risk of Zika virus by end of first wave of epidemic.
German Neanderthal population exploded just before they went extinct
Archaeologist show settlements increased over 20 fold in later Middle Palaeolithic period.
We would get just one year's warning before a supervolcano erupted
Quartz crystals from Long Valley caldera reveal how gas powering supereruptions accumulates in just a year.
Poop found in 2,000-year-old toilet reveals how disease spread along Silk Road
Archaeologists find traveller carried parasitic flatworm Chinese liver fluke 1,500km.
Siberian tundra wobbling like a waterbed from methane gas leak
Patches of ground on Bely Island bubbles underfoot in what is believed to be a newly recorded phenomenon.
Malaria mosquitos hate the smell of chicken
Malaria-transmitting Anopheles arabiensis species is found to avoid certain animals when looking to feed.
These two rocky planets could be our best chance so far at finding alien life
Rare double transit of planets allowed scientists to analyse two potentially habitable worlds.
Great white sharks have almost been wiped out in South Africa
There are as few as 350 great whites in the country's waters, according to a population survey.
Biggest great white shark ever? Incredible photos of huge sea creature dwarfing cage divers
Measurement of great white could not be taken but it is thought it rivals 20ft Deep Blue.
Slow home, Loris - you're drunk
Primate adaptation for metabolising alcohol appears to have served an evolutionary purpose.
Nasa's Kepler discovers 104 exoplanets including two rocky worlds that could host alien life
Round-up of exoplanets would help astronomers focus on 'gems' when James Webb telescope is launched in 2018.
When will Lake Toba supervolcano erupt again?
Massive magma reservoir is growing beneath the Toba caldera - but we are safe for thousands of years
From funding to jobs: UK's leading scientists issue strong warning over Brexit
UK national academies publish joint statement calling on government support following Brexit.
Artificial cartilage could revolutionise hip replacements and stop arthritis returning
Scientists say stem cell cartilage could be trialled in humans in three to five years.
What would happen if you fell into a black hole?
Theoretical physicist answers questions on what would happen if you got sucked into a black hole
Bardarbunga volcano eruption of 2014 created the biggest caldera formation ever observed
Scientists get unprecedented view of poorly understood process of caldera formation.
