Any wall can be turned into a camera to see around corners
Technology for seeing around corners would be of use to the military Matthew Horwood/Getty Images An ordinary camera could soon
Before the Great Wall, Chinese rulers built a shallow ditch
Archaeologists excavate part of the medieval wall system in Mongolia Gideon Shelach-Lavi et al. 2025 Long before the Great Wall
Trump’s Golden Dome defence project could spur a space arms race
US President Donald Trump (left), accompanied by US Secretary of Defense Pete Hegseth (right), announces the Golden Dome missile defense
New dwarf planet spotted at the edge of the solar system
The orbits of a potential dwarf planet called 2017 OF201 and the dwarf planet Sedna Tony Dunn A potential dwarf
AI doesn’t know ‘no’ – and that’s a huge problem for medical bots
AI models can struggle to understand the captions on some medical images Getty Images Toddlers may swiftly master the meaning
US east coast faces rising seas as crucial Atlantic current slows
The AMOC is a system of ocean currents that circulates water within the Atlantic Ocean NASA/Goddard Space Flight Center Scientific
The FBI is getting new technology to see through walls
FBI headquarters in Washington DC Shutterstock/Bob Korn The US Federal Bureau of Investigation (FBI) plans to buy radar technology that
Does intermittent fasting improve gut health? Why it’s hard to say
How does intermittent fasting change the gut microbiome? Oliver Leedham/Alamy Stock Photo There is evidence that intermittent fasting alters the
Dementia cases are rising faster in China than the rest of the world
Why are dementia cases soaring in China? hanohikirf/Alamy Dementia rates are increasing more rapidly in China than almost anywhere else
The world, the universe and us: We’re relaunching our weekly podcast
We are very proud of our Weekly podcast, which we have been putting out every week for over five years.