ESA's Jan Woerner: If life existed below the surface of Mars we will find it
Woerner says living organisms may have existed under the planet's surface.
Hostility and stress in your 20s can lead to cognitive decline in later life
Research show anger and poor resilience to anxiety cause impairments in brain function 25 years later.
World Wildlife Day 2016: Theme, facts and events celebrating 'future in our hands'
World Wildlife Day takes place on 3 March to raise awareness of the challenges faced by wild species.
Happiness can break your heart: Joy leads to rare heart condition 'takotsubo' syndrome
"The broken heart syndrom" which can cause a heart attack can be caused by an intense moment of joy.
Common fertiliser found to impact fertility potentially posing a risk to humans
Sheep exposed to common fertiliser during gestation have fertility problems - which could affect humans.
Cholera-like diseases ride on El Niño to spread to new shores
Waterborne diseases proliferate from one continent to another by travelling with ocean currents.
Abortion drug Mifepristone holds potential as a safe breast cancer treatment
Researchers have shown Mifepristone can reduce cancer cell growth and proliferation.
Scientists discover how lack of sleep makes us overeat
A study brings new clues to understand why we reach for late-night snacks.
Dark web not a hub of rare wildlife trade because standard routes are so poorly monitored
Preliminary research suggests illegal wildlife trade is more common on the surface Web than on the darknet.
Daytime saving: 'Significant risk increase' of a stroke associated with the clocks changing
Changing our clock by an hour, backward or forward, may increase the risk of ischemic stroke.
Can you catch Ebola from a survivor? Risk 'very low' except through sexual transmission
A study shows that the Ebola virus does not remain long in the body, except in the semen.
What is yellow fever? Everything you need to know about the Angola outbreak
A yellow fever outbreak in Angola has left 125 people dead. Vaccination is an effective protection against the disease.
Huntington's disease drug trial: Treatment could 'alter course of devastating disease'
Animal trial shows promising results for IONIS-HTTRx drug that targets causes of the disease.
Rare disease day: History, facts and 'patient voice, making the voice of rare diseases heard' theme
Rare Disease Day 2016 gives a voice to the millions of patients affected by a rare disease.
Scott Kelly livestream: Watch Nasa astronaut leave ISS live online following Year in Space
After 340 days in Scott Kelly returns to Earth. Watch him leave the ISS live online.
Scott Kelly's Year in Space: Best pictures from Nasa astronaut's Instagram and Twitter feed
Some of the incredible, beautiful images of Earth from space taken by astronaut which he posted on social media.
Calais Jungle eviction: How Gynaecology Without Borders is working to protect vulnerable pregnant migrants
Non-Governmental Organisation fears pregnant women could be the first victims of Jungle eviction.
Zika virus linked with stillbirths, loss of brain tissue and rare birth defects
New research has uncovered a potential link between the Zika virus and stillbirths.
France drug trial: Evidence of deadly dog tests before fatal brain damage dose to human subject
An investigation by French newspaper Le Figaro says dogs died during the preclinical phase of the trial.
Party drug ketamine can be used to sedate aggressive ER patients in 'just 20 minutes'
Anaesthetic and analgesic drug can sedate ER patients with acute behavioural problems.
Israel's major step against HIV: Country now allows PrEP as a preventive treatment
Israel will follow in the US and France's footsteps, allowing PrEP for people most vulnerable to HIV.
Air pollution increases obesity risk: 'Urgent' action needed to improve air quality
A recent study shows that breathing polluted air can lead to metabolic dysfunction and possible weight gain.
Dodos were not so dumb after all: Study shows clichés about extinct bird are 'unfounded'
US researcher demonstrates that the flightless bird probably had the same size brain as the industrious pigeon.
Parasitic worms burrow through your skin: Schistosomiasis driven by Brazil's eco-tourism
Schistosomiasis is a tropical infection that spreads in Brazil's areas, where rural tourism is developed.
Ebola: Why was British nurse Pauline Cafferkey admitted to hospital for a third time?
Cafferkey's new admission shows the virus is 'much more complex' than previously thought.
Vaginal ring reduces risk of HIV by 37% providing prevention hope for women in Africa
A vaginal ring releasing an antiretroviral drug reduces the risk of women getting HIV.
Bat 'super immunity' could help fight off diseases like Ebola in humans
Researchers have found that bat immunity differs from humans, and is effective in combatting lethal diseases.
Apocalypse Now: If our world collapses, we can survive 55 years on supermarket food
A scientist says we could survive half a century thanks to non-perishable goods taken from UK stores.
Addictive effects of alcohol on the brain appear after your first drink claims new study
One single unit of alcohol can lead to neurological changes and to further drinking.
Homeopathy is a therapeutic dead end: Alternative medicine ineffective at treating anything
After analysing 176 studies, expert calls the treatment a 'very dubious activity' and no better than placebos.
