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Stay informed with commentary and opinion pieces on the latest issues in science, technology, health and the environment, written by expert 91av journalists and world-leading researchers and thinkers.
Why memory manipulation could be one of humanity's healthiest ideas

Mind

Why memory manipulation could be one of humanity's healthiest ideas

It might sound like dystopian science fiction, but discovering how to reshape memories responsibly is helping us to heal the brain from within, says Steve Ramirez

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Plasma ball, conceptual illustration.

Space

Why dark matter is still one of the biggest open problems in science

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Oxfam activists wearing oversized masks representing (L to R) Brazil's President Luiz Inacio Lula da Silva, France's President Emmanuel Macron, European Commission President Ursula Von der Leyen, Argentina's President Javier Milei, US President Donald Trump, Britain's Prime Minister Keir Starmer, South Africa's President Cyril Ramaphosa, Canada's Prime Minister Mark Carney and Mexico's President Claudia Sheinbaum pose during their

COP30: The UN climate summits are no longer fit for purpose

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DA0WKD 3D render of an overweight female medical skeleton walking with knee joints highlighted

Health

How a new way of thinking about fat could transform your health

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A futuristic depiction of a woman wearing neon light-up augmented reality glasses. The glasses emit blue and red lights, creating a cyberpunk atmosphere. The young Black woman is captured in a dark environment with dynamic light streaks, emphasizing the high-tech and futuristic theme.

Technology

Imagining a future where smart glasses allow 'AI slop' to be avoided

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Cars are getting bigger. This is a problem for us and for the planet

Health

Cars are getting bigger. This is a problem for us and for the planet

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Physics

The forgotten women of quantum physics

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Adolf Hitler

Humans

Analysing Hitler's DNA for a TV gimmick tells us nothing useful

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Sperm are selfish – and so are we

Life

Sperm are selfish – and so are we

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GEGPJC XX Chromosome concept. Female Heterogametic Sex. 3d illustration.

Health

Finally wrangling with the complexity of female bodies benefits us all

Medical research has long sought to gloss over the hormonal and chromosomal complications typical of female biology. But embracing this complexity could benefit everyone

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Society

Is the future of education outside universities?

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Humans

Cradle of humanity is still revealing new insights about our origins

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Society

Human minds abhor uncertainty. This is a problem for liberal democracy

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Comment

The Trump administration is playing peekaboo with reality

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