


New technologies can spot pesky leaks in water pipelines
Across Europe, nearly a quarter of water goes to waste
IN JUNE, BLISTERINGLY hot temperatures and a prolonged dry spell plunged much of southern Italy into its worst drought in decades. Water shortages on glitzy Capri became so dire that local authorities temporarily banned ferries from offloading tourists at the island. A lack of rainfall tells only half the story. Decrepit infrastructure is as much to blame, with over 40% of Capri’s drinking water seeping out through leaks in its pipe network before it reaches customers.

NASA is selling a brand-new Moon rover
Never used, one previous owner

The world’s oldest cheese sheds light on ancient Chinese culture
What genetic analysis of a 3,500-year-old sour goat’s cheese from Xinjiang reveals

China’s AI firms are cleverly innovating around chip bans
Tweaks to software blunt the shortage of powerful hardware
Most electric-car batteries could soon be made by recycling old ones
Mining for raw materials may peak by the mid-2030s
New battery designs could lead to gains in power and capacity
Researchers are looking beyond the cathode
Earth may once have had a planetary ring
It would have collapsed 450m years ago