Unhealthy soil is prevalent across sub-Saharan Africa
A new study looks at what is causing severe air pollution over Beijing
Philae's COSAC instrument detects organic materials on Comet 67P
Sir Paul Nurse, virologist Wendy Barclay and Nasa's Ellen Stofan on 50 years of science
Rosetta's probe Philae gets ready for the first ever comet-landing
Car crashes kill 1.2 million people each year. Could robots be better than human drivers?
Nobel Laureate-led team develop microscopy methods to film cell activity.
What the Interface Region Imaging Spectrograph (IRIS) satellite can tell us about the sun
The 2014 Nobel Prizes for Physiology or Medicine, Physics and Chemistry are announced
The origin of the HIV pandemic has been traced to the 1920s in the city of Kinshasa