AI doctors’ orders come with a sky-high bill
Large language models suggest more tests, referrals and medications than human physicians do, driving up the cost of care.
Surprise! White dwarf stars come in a rainbow of colours
Analysis of some nearby stars shows that, despite their name, these bodies can be pink, yellow and more.
Sleep declines in rural communities after electricity arrives
Scientists tracked the changing sleep patterns of Indigenous people in Argentina who gained access to mains electricity — and smart phones.
Toxic chemicals in fentanyl revealed by speedy technique
Chemical fingerprinting charts the rises and declines of specific adulterants in illicit supplies of the drug.
