Extinction Rebellion begins fortnight of climate protests in London
25 August 2021
The protest group Extinction Rebellion is campaigning for government action on climate change in the wake of this month's IPCC report
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Premium
Covid passes: How are they used, are they ethical and do they work?
25 August 2021
Vaccine passports are becoming part of life, despite doubts over their ethics and effectiveness. Here's what you need to know about them
Sneaky US Navy feedback device could stop people being able to speak
24 August 2021
A non-lethal device developed by the US Navy aims to surreptitiously render people unable to speak by beaming their own voice back at them with a tiny delay
Thieving honeybees offer a glimpse of flowers’ evolutionary origins
24 August 2021
Honeybees sometimes steal pollen without helping the plant that makes it. Now, a study of pollen theft from a type of non-flowering plant is shedding light on why the first flowers evolved
It really is difficult to get fit after giving birth, study reveals
24 August 2021
One year after giving birth, only 30 per cent of soldiers were able to obtain the same level of fitness as they had pre-pregnancy
Investigation of Nazi uranium could help stop modern nuclear smuggling
24 August 2021
Cubes of uranium salvaged from Nazi Germany's atomic bomb programme during the second world war are being analysed to confirm their origin, and the method could help law enforcement investigate illegal trafficking of nuclear material
Ants use soil physics to excavate metre-long tunnels that last decades
23 August 2021
3D X-ray imaging and computer simulations suggest ants have developed a behavioural algorithm that allows them to excavate tunnels by using soil physics – the technique could eventually be harnessed to develop robotic mining machines
Apple's child abuse detection software may be vulnerable to attack
20 August 2021
Apple's soon-to-be-launched algorithm to detect images of child sexual abuse on iPhones and iPads may incorrectly flag people as being in possession of illegal images, warn researchers
Astronomers have just found more than half a million new asteroids
20 August 2021
A pair of astronomers have sifted through old data to find more than half a million new asteroids, which may reveal how planets moved in the early solar system
2021's extraordinary wildfires have released a record amount of CO2
20 August 2021
Huge blazes from the north-east of Russia to North America have made global carbon dioxide emissions from wildfires this year the highest in nearly two decades of modern satellite records
