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An AI-assisted analysis of satellite images suggests the vapour trails produced by aircraft have a net cooling effect in the daytime because they reflect sunlight back into space

Voice assistants can build profiles of their users’ habits and preferences, but the consistency and accuracy of these profiles vary

FDA medical examiner Frances Oldham wanted data that would show that thalidomide was safe to use during pregnancy. It wasn’t

Astronomers listened for radio signals emanating from planets in the TRAPPIST-1 system, but found no evidence of any interplanetary communications

Northern sea robins are formidable marine hunters, and they owe their success to modified fin rays that let them find prey buried in the seabed

Experts call for greater testing of contacts of a person who was infected with the H5N1 bird flu strain before the virus causes a wider outbreak

A species of legged fish uses taste receptors to search for hidden prey, providing an ideal window for scientists to study the emergence of new evolutionary traits

It has become trivially easy to use artificial intelligence to edit images or generate video to remove unwanted objects or beautify scenes, but doing so leads to people misremembering what they have seen

Flawed implementation of a global eradication strategy brought poliovirus to Gaza, and wartime conditions let the infection spread

Replacing some existing vegetable oil crops with camellia oil could boost production while reducing environmental impacts such as greenhouse gas emissions

Why ordinary people will follow orders to the point of hurting others remains a critical question for scientists—though some answers have emerged

An office in the Pentagon investigated UFOs—and the paranormal—over a decade ago, segueing into a long saga leading to Congressional hearings and breathless news stories today. But the real story looks more like former defense officials pushing their personal mythology, rather than any cover-up of aliens

A distant planet should have been consumed when its star expanded to become a red giant, perhaps offering insights into planetary migration

A flurry of studies has found microplastics in nearly every organ in the human body, from the brain to the testicles. But very few have revealed whether these tiny bits of plastic impact our health

DNA and genealogical evidence reveal, for the first time, the identity of cannibalised remains recovered from the Franklin expedition

It seems to be more energy efficient for emus to keep one foot on the ground when running at a moderate pace, and the same may have been true for dinosaurs

Category 4 Hurricane Helene is a large storm set to bring substantial storm surge to the coast of Florida, as well as wind and rain-driven flooding up into Tennessee and South Carolina

If we want to preserve the dwindling ice in the Arctic, cutting our emissions is no longer enough – we also need to use geoengineering to refreeze this precious ecosystem

Looking silly when they run saves birds energy—and some dinosaurs may have done the same

Tree ring data reveals the impact a fluctuating jet stream has had on Europe for 700 years – and sheds light on future risks amid our warming planet