Carnivores 'help trees shed thorns'
Thu, 16 Oct 2014 19:23:54 GMT
The presence of carnivores, which control herbivore numbers, helps plants without thorny defences thrive, a study of life on the savannah reveals.
Death Star moon is 'wonky or watery'
Thu, 16 Oct 2014 18:04:59 GMT
The internal structure of Saturn's moon Mimas is either irregularly shaped or awash with water, according to a new study of its tell-tale wobbling movements.
Name sought for comet landing site
Fri, 17 Oct 2014 10:27:49 GMT
The public are being invited to name the site on a comet where a European robot will try to land on 12 November.