Our big brains may have evolved because of placental sex hormones
Exposure to hormones in utero could affect human brain growth Peter Dazeley/Getty Images The human brain is one of the most complex objects in the
The prospectors hunting hydrogen along a US continental rift
New Scientist visited a hydrogen well in Kansas Hyterra/Adler Grey The drilling rig rises several stories above a field normally full of grazing cattle. Though
How a US agriculture agency became key in the fight against bird flu
A dangerous strain of bird flu is spreading in US livestock MediaMedium/Alamy Since Donald Trump assumed office in January, the leading US public health agency
Meta’s AI memorised books verbatim – that could cost it billions
In April, book authors and publishers protested Meta’s use of copyrighted books to train AI Vuk Valcic/Alamy Live News Billions of dollars are at stake
US stops endorsing covid-19 shots for kids – are other vaccines next?
US Secretary of Health and Human Services Robert F Kennedy Jr Tasos Katopodis/Getty One of the top vaccine experts at the US Centers for Disease
Is ADHD on the rise? No – but that answer doesn’t tell the whole story
There are concerns that more children are being diagnosed with ADHD Imgorthand/Getty Images Is ADHD in children on the rise? An assessment of thousands of
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 take photos of things that
First evidence of ancient birds nesting above the Arctic circle
Illustration of ancient birds nesting above the Arctic circle Gabriel Ugueto Newly discovered bone fragments from Alaska suggest birds have been breeding and nesting in
Cord blood banking is not living up to its promise
Banking a baby’s umbilical cord blood was once seen as a reasonable way to protect their future health, but much of that potential has turned
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 shield CHRIS KLEPONIS/POOL/EPA-EFE/Shutterstock US President