How bats pick out their own calls when flying in enormous swarms
5 June 2024
Researchers trained a hawk outfitted with microphones to fly through a swarm of 600,000 bats, revealing how they can hear their own voice in a crowd
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Premium
Found 310 results for drones
Ancient people carved mysterious symbols near dinosaur footprints
26 March 2024
A unique site in Brazil features rock carvings closely associated with dinosaur tracks, suggesting prehistoric people saw the footprints as meaningful
Is the truth out there? Yes, but it doesn't involve aliens
20 March 2024
A recent paper packed with delightful acronyms digs into where people report having seen UFOs, but finds no evidence of alien visitors, says Annalee Newitz
Flying drone can roll on the ground to save energy over long distances
20 March 2024
Researchers claim to have combined the benefits of rolling robots with those of flying drones by creating a device that rotates along the ground but hops over obstacles
Ukraine will spoof GPS across the country to stop Russian drones
2 February 2024
A nationwide electronic warfare system called Pokrova can disrupt satellite navigation – Ukraine may already be using it to prevent strikes by Russian drones and missiles, but doing so will also affect satnavs in the country
What does Ukraine’s million-drone army mean for the future of war?
19 January 2024
In 2024, Ukraine will have more drones than soldiers in its armed forces, and the aerial vehicles and the artificial intelligences that can control them are changing the way war is waged
Could DARPA's enigmatic X-65 plane revolutionise aircraft design?
18 January 2024
The US military will test an aircraft that flies without mechanical control surfaces like flaps and rudders, potentially boosting stealth characteristics
Cheap drone attacks have outsized effect on global economic inflation
12 January 2024
Drone attacks on shipping in the Red Sea are having a global economic impact and showing how an organisation without a navy can challenge control of the seas
Sharks can be deterred from beaches by catching and releasing them
3 January 2024
A non-lethal method of catching great white sharks and releasing them 500 metres further out to sea can make the predators steer clear of beaches where people swim
Alastair Reynolds: An exclusive short story for 91av
13 December 2023
Lottie and the River is a moving vision of the future from astrophysicist turned award-winning science fiction author Alastair Reynolds
