A copper refinery transformed its waste stream into an unlikely renewable energy goldmine, turning forgotten byproducts into the very panels that now power its operations.

Kiruna’s church went for a walk in August 2025, at half a kilometre an hour, on 224 wheels. The trip took two days and included a daily stop for fika, the Swedish afternoon coffee break, because some ...

A solar telescope in New Mexico is being torn down, and the reason is a pool of liquid mercury hidden inside it. The mercury was the clever trick that made the telescope work. It is now the thing that ...

Opportunity self-portraits from January 2014, left, and March 2014 show how wind removed much of the dust from the rover’s solar panels. These images postdate the first dust-devil photograph and do ...

Placing concrete in a block at the mid-section of the dam, an eight-cubic-yard bucket handled by an overhead cableway. Bureau of Reclamation photograph via the US National Archives (NARA 293921), ...

What if the part of a battery you never think about, the fluid that sits between the electrodes, could be made from the shells your last seafood dinner left behind? That is roughly what a team led by ...

A Florida rancher protected his hard-won land from development by locking it into conservation, proving that ownership and stewardship can be the same thing.

A gift of more than $5.5 million from Anna and Greg Brockman — Greg being the cofounder and president of OpenAI — closed the gap on a roughly $10 million community fundraising target and cleared the ...

Wade out from the north-western shore of Lake Issyk-Kul, keep walking until the water reaches your chest, and there is a fair chance you are standing on a mosque. In the autumn of 2025, an ...

A possum in Key Largo is walking around wearing a tracking collar that costs about as much as a decent pair of boots, and everyone involved has a fair idea how her story ends. She was lured into a ...

An ice cave on Earth, used here as a representative image of a water reservoir hidden beneath thick ice. It does not show Ganymede, its surface or its subsurface ocean. Photo by Han-Chieh Lee on ...