Going nuclear on the moon and Mars

It might sound like science fiction, but scientists are preparing to build colonies on the moon and, eventually, Mars. With NASA planning its next human mission to the moon in 2024, researchers are looking for options to ...

Polluted wastewater in the forecast? Try a solar umbrella

Evaporation ponds, which are commonly used in many industries to manage wastewater, can span acres, occupying a large footprint and often posing risks to birds and other wildlife. Yet they're an economical way to deal with ...

Tensions surge over Serbia's small hydropower plants

Deep in the isolated forests of eastern Serbia a digger gouges a channel through the trees for a pipeline to siphon river water, as the coal-reliant country's efforts to clean up its energy habit triggers a hydro "gold rush".

Can Switzerland succeed without fossil fuels?

If we want to get rid of fossil fuels nationwide, there is a lot to do. It will be a generation project, that much is clear. Empa researchers Martin Rüdisüli, Sinan Teske and Urs Elber have now calculated how long and steep ...

Clean energy from local producers

Is it possible to boost sales of locally produced solar energy by allowing households to trade it through a peer-to-peer platform? The year-long Quartierstrom research project in Walenstadt is investigating how energy markets ...

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