The five: ways to slow the onset of Alzheimer’s

Various ways to check the progress of the disease

Richard Branson: ‘Aviation can be carbon neutral sooner than we realise’

The relentlessly upbeat entrepreneur believes efficiency and electricity could stop airlines worsening the climate crisis

Mind-reading tech? How private companies could gain access to our brains

Social media companies can use online data to make reliable guesses about pregnancy or suicidal ideation – and new BCI technology will push this further

Google claims it has achieved ‘quantum supremacy’ – but IBM disagrees

Task that would take most powerful supercomputer 10,000 years ‘completed by quantum machine in minutes’

No filter: my week-long quest to break out of my political bubble

Websites such as OneSub, Nuzzera and AllSides hope to subvert political polarisation by offering news and views from beyond users’ usual sources. But is it that simple?

Campaign to stop ‘killer robots’ takes peace mascot to UN

Robot Wars survivor David Wreckham has found new purpose as the face of the Campaign to Stop Killer Robots

What happens if your mind lives for ever on the internet?

It may be some way off, but mind uploading, the digital duplication of your mental essence, could expand human experience into a virtual afterlife

Women break prize drought by winning five 2019 prime minister’s science awards

Mathematician Cheryl Praeger takes top gong and is praised for ‘outstanding contribution to mathematics’

Nasa unveils spacesuits to be worn by first woman on the moon

Next-generation garments for Artemis programme will be used during 2024 lunar mission

Cancelled for sadfishing: the top 10 words of 2019

From people becoming a proper noun to woke’s use as an insult, we pick our key words of the year

The obscure law that explains why Google backs climate deniers

Company wants to curry favour with conservatives to protect its ‘section 230’ legal immunity

The five: Donald Trump’s attacks on science

How the US president is at odds with scientists and their work

Internet linguist Gretchen McCulloch: ‘I’m still figuring out what’s going on with the comma ellipsis’

Her new book on language change online reveals surprising historical precedents to emojis, memes and sarcastic punctuation

Demagogues thrive by whipping up our fury. Here’s how to thwart them

The language of violence and outrage is dominating our discourse. To defeat it, we must learn not to respond in kind, says Guardian columnist George Monbiot

French citizens’ panel to advise on climate crisis strategies

Body of 150 non-experts to explore ways of cutting carbon emissions by 40% before 2030