Sponge-like material filled with air pockets can transform saltwater into freshwater using the sun, supporting sustainable ...

In Cairo’s City of the Dead, where homes are mausoleums and communities have grown among the graves, residents speak out ...

Research suggests productivity and health of trees across the world may be at risk as climate change continues to wreak havoc ...

Discover the world’s longest and deadliest heatwaves – from Phoenix to Paris – and how climate change is making extreme heat ...

The starting protocol is equally perverse. Runners are told to gather on a particular date, but the race can start at any ...

From submarines to space stations, and from Guam to the US Virgin Islands – how Americans mark their independence off the ...

Discover exactly how NATO spending works and what exactly nations are spending their budgets on around the world ...

From facial recognition to delivery drones and crop monitoring, discover how nations are deploying new AI tech, and who is ...

How well do you know your flags? From bold stripes to curious colours, flags reveal a lot about a country’s identity. Put ...

Migration of these microscopic animals – known as a 'seasonal migrant pump' – supports carbon sequestration in the Southern ...

Polynyas are more than holes in Antarctic ice – they’re vital hotspots where marine life thrives and the ocean breathes ...

How well do you know Europe’s capitals? Put your geography skills to the test with this quiz on the political and cultural ...