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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.

Humans

Are Neanderthals descendants of modern humans?

The gap between genetics and archaeology leaves us with an unclear picture of where the Neanderthals originated. Columnist Michael Marshall details a surprising new hypothesis that suggests they may have come from us

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Physics

The stunning physics of Project Hail Mary go back to ancient China

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Mathematics

The man who ruined mathematics

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Physics

How a century-long argument over light’s true nature came to an end

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Health

Iodised salt has become uncool but many of us need to eat more iodine

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Environment

How a DIY worm farm can compost food scraps, paper or a whole kangaroo

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Health

I have been bitten by more than 200 snakes – on purpose

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Mind

The best kind of olive oil for brain health

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Space

I almost drowned in space when my helmet filled with water

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Physics

How Anthony Leggett pushed the boundaries of quantum physics

After the passing of physicist Anthony Leggett, columnist Karmela Padavic-Callaghan remembers their personal connection with this giant of quantum physics, and explores the legacy of his enduring recipe for testing the edges of the quantum world

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Health

Are humans degenerating genetically and getting dumber as a result?

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Health

A negative attitude towards ageing is making you age faster

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Technology

The success of machine mathematicians shows us how to be OK with AI

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Technology

Social media is a defective product

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