Biofilters offer in-situ low-maintenance ways of treating wastewater.
Winners from Germany and Canada take home top prizes.
New observations may provide alternative explanations for dark energy.
Electric cars with liquid batteries could be charged in minutes, says Prof. Cronin.
We need to double-check the evidence on dark energy, as it may not exist at all, says Prof. Subir Sarkar.
Research and innovation can generate the knowledge and solutions to tackle urgent international problems like the Ebola outbreak or the refugee crisis.