21 November 2025
Around 1000 markings on a slab of rock that was once a seafloor during the Cretaceous period may have been made by sea turtle flippers and swiftly buried by an earthquake
18 November 2025
Facing its worst drought in decades, Iran is attempting to stimulate rain by spreading seeding agents in clouds, but the technique is likely to have modest benefits at best
10 November 2025
Thousands of holes arranged in a snake-like pattern on Monte Sierpe in Peru could have been a monumental accounting device for trade and tax
4 November 2025
Building a working quantum internet would require overcoming a host of technical challenges, but researchers who have built one of the most advanced quantum networks to date say they think it is possible
15 September 2025
As drones have risen to prominence on the battlefield, so too has electronic warfare, in which adversaries attempt to mask, jam or trace radio signals. Now, a new stealthy radio device could help give people the edge, letting them fly drones without...
29 July 2025
Russian ambush drones have been seen in Ukraine fitted with cheap solar panels, which enable them to lurk indefinitely, waiting for a target to come near
25 July 2025
A pioneering solar-powered drone aircraft operated by Skydweller Aero will be used for maritime surveillance
10 July 2025
Sea-skimming crafts – which fly just above the water – were once considered Cold War relics of a failed Soviet experiment. Now, China and the US are resurrecting the technology as a possible Pacific conflict looms
27 June 2025
Large sea anchors could be used to drag water under a bold plan to keep the Atlantic Meridional Overturning Circulation moving – but some experts are sceptical
24 June 2025
A simulation of the "aerial screw" designed by Leonardo da Vinci in 1480 suggests it would use less power than modern drone rotors to generate the same lift, and make less noise too
