Ready, text, go: typing speeds on mobiles rival keyboard users

Global test finds those using two-thumb technique can hit a blistering 38 words per minute

Will advances in quantum computing affect internet security?

Google has built a super-fast computer said to massively outpace ‘classical’ ones. Whether it can break the encryption we take for granted is moot

Scientists invent new technology to print invisible messages

Messages can only be seen under UV light and can be erased using a hairdryer

AI equal with human experts in medical diagnosis, study finds

Research suggests AI able to interpret medical images using deep learning algorithm

Are brain implants the future of thinking?

Brain-computer interface technology is moving fast and Silicon Valley is moving in. Will we all soon be typing with our minds?

The five: airborne pollutants in our bodies

Fine particulate matter in polluted air enters the body via the lungs and affects our health in a variety of ways

Why it’s dangerous to liken DNA to computer code

The lure of bioengineering is obvious but we should be wary of bugs

Vaclav Smil: ‘Growth must end. Our economist friends don’t seem to realise that’

The scientist and author on why humanity’s endless expansion must stop.

What does ‘living fully’ mean? Welcome to the age of pseudo-profound nonsense

Inspirational quotes of dubious provenance are just one of the ways in which social media sells a warped vision of ‘living fully’

A ‘deep fake’ app will make us film stars – but will we regret our narcissism?

Users of Zao can now add themselves into the scenes of their favourite movies. But is our desire to insert ourselves into everything putting our privacy at risk?

The greatest threat to life on Earth may come from space

Asteroids and space debris could wreak untold devastation on the planet

Jeffrey Epstein’s influence in the science world is a symptom of larger problems

In a system stacked against women, we must direct our harshest judgment at people and institutions who remain silent

Douglas Adams was right – knowledge without understanding is meaningless

Supercomputers are solving complicated problems but we often don’t know how

The Lion King missed an opportunity to talk about the climate crisis

Like the movie’s characters, the audience is experiencing the unprecedented, rapid destruction of earth – but the film doesn’t acknowledge it

The Guardian view on ethics for mathematicians: an essential addition

Editorial: Science may be morally neutral but scientists can’t be. They need to take seriously the ethical consequences of their work