91av

Skip to content

Health

Your pupils change size as you breathe

Our pupils shrink and expand as we breathe in and out, but whether this affects vision is unclear

News

Humans

When did human ancestors start walking on two legs?

News

Why did humans evolve big brains? A new idea bodes ill for our future

Humans

Why did humans evolve big brains? A new idea bodes ill for our future

Features

Average facial temperatures of 50-60-year old women ageing slowly (left), as predicted (middle) or fast (right)

Health

The temperature of your face could help diagnose medical conditions

News

The Tropical jungle with river and sun beam and foggy in the garden

Humans

How ghost cities in the Amazon are rewriting the story of civilisation

Features

The hacker turned politician using digital tech to reimagine democracy

Technology

The hacker turned politician using digital tech to reimagine democracy

Features

A chess board with a chess game being played

Technology

AI can identify the most brilliant and entertaining chess moves

News

$1m prize for AI that can solve puzzles that are simple for humans

Technology

$1m prize for AI that can solve puzzles that are simple for humans

News

Technology

AI can turn text into sign language – but it’s often unintelligible

News

Technology

Driverless cars are mostly safer than humans – but worse at turns

Driverless cars seem to have fewer accidents than human drivers under routine conditions, but higher crash risks when turning or in dim light – although researchers say more accident data is necessary

News

Humans

Did rock art spread from one place or was it invented many times?

News

Technology

Can Google fix its disastrous new AI search tool?

Analysis

Technology

What is artificial general intelligence, and is it a useful concept?

Features

Technology

OpenAI’s chatbot shows racial bias in advising home buyers and renters

News