Energy & Green Tech

Could mini nuclear stations plug South Africa's power gaps?

South African nuclear scientists want to build a new generation of mini nuclear reactors, both to plug holes in their own country's blackout-plagued grid and to build an export industry for the future.

Energy & Green Tech

Extracting uranium from seawater as another source of nuclear fuel

Oceans cover most of Earth's surface and support a staggering number of lifeforms, but they're also home to a dilute population of uranium ions. And—if we can get these particular ions out of the water—they could be a ...

Engineering

What's standing in the way of sustainable steel?

Steel production is the surprising source of 8% of all greenhouse gases today. Most of it comes when converting iron ore into molten iron. Usually, that means with coal. Clean-burning hydrogen fuel, on the other hand, which ...

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