91色情片

Caves on comet 67P/Churyumov-Gerasimenko

Space

Caves seen on the surface of a comet for the first time

By building a 3D image of part of the surface of a comet called 67P, astronomers have discovered caves up to 47 metres deep

Humane AI pin

Technology

Will AI make computer screens a thing of the past?

Environment

Hydropower generation in western US set to fall as climate gets drier

Policeman checking woman driver for alcohol intoxication

Technology

Your unique breath 鈥榝ingerprint鈥� could be used to unlock your phone

The sun

Space

The sun could contain a tiny black hole that formed in the big bang

Society

Cheap drone attacks have outsized effect on global economic inflation

Life

Guinness yeasts are genetically unique among Irish beers

Venus

Space

Molecules vital for life could survive in Venus鈥檚 acid clouds

Environment

US grid vulnerable to power outages due to its reliance on gas

Humans

Ancient cities discovered in the Amazon are the largest yet found

A mysterious civilisation built a network of cities and roads in the Amazon between 3000 and 1500 years ago, and then disappeared

Life

Numbats are overheating because Australia is getting too hot for them

Technology

Chinese social network fails to curb abuse by showing users’ locations

Life

Oldest known skin fossil is from 300-million-year-old reptile

Life

Early fossil identified as new species of Tyrannosaurus