Health
Cars are getting bigger. This is a problem for us and for the planet
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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.
Life
Sperm are selfish – and so are we
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Society
Human minds abhor uncertainty. This is a problem for liberal democracy
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Space
Sorry, but interstellar visitor 3I/ATLAS really is a comet, not aliens
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Environment
Tough choices lie ahead when it comes to climate change adaptation
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Mind
Horror fans aren't cold and unfeeling – just listen to the science
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Environment
Are biofuels a good idea? Only if you're a farmer or shipping company
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Society
There is a major psychological flaw in how society punishes people
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Health
Why not all ultra-processed foods are bad for you
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Life
How Jane Goodall changed the way we see animals – and the world
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Why abandoning psychedelic research in the 1970s was a blow to science
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Life
'Funny' videos of stressed and frightened pets are no laughing matter
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