21 August 2014
Scientists determine the comet being followed by Europe's Rosetta spacecraft to have a mass of 10 billion tonnes.
Astronomers have shown that dead stars known as white dwarfs can re-ignite and explode as supernovas.
A trial vaccine against Ebola could be tested on healthy volunteers in the UK in September, says an international health consortium.
Scientists produce a simple mathematical model that explains how a single sheepdog can herd a large number of sheep.
The climate impacts of the world's fossil-fuelled power plants are being underestimated because of poor accounting, say researchers.
30 July 2014
Species that have both positive and negative impacts on their environment are giving new insights into how to save those under threat.
7 August 2014
How do you land on a comet? That's problem facing the people running Esa's Rosetta mission after the successful rendezvous with Comet 67P/Churyumov-Gerasimenko.
New atlas catalogues 9,000 Southern Ocean species
Why so many of us are developing allergies
Warning over electrical brain stimulation
Measuring and tackling an invisible killer
Using virtual reality to 'go back in time'
Sri Lanka tree barrier could prevent conflict
What pinpointing positions on the planet could mean for you
An ecosystem thrives in the freezing Antarctic underbelly
Which is the best eco option - eating beef, chicken or mussels?
How Ebola crisis has affected West Africa's economies
UK man keeps eye on dangerous asteroids
Rescuers comb through the site of Japan landslides
Cars created Detroit, but today the wide open roads are perfect for cyclists
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