Life
Why haven't we heard from aliens? There is a reason for the silence
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Explore the most exciting new ideas and emerging concepts in science, health, technology and the environment with 91av’s exclusive in-depth articles, interviews and long reads.
Technology
How an upgrade on calculus is taking maths into uncharted territory
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Health
The surprising upsides of the prions behind horrifying brain diseases
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Environment
Will a scramble to mine metals undermine the clean energy revolution?
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Health
Why Alzheimer’s is not a single disease – and why that matters
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Life
Do you speak elephant? With this new dictionary you will
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Physics
The quantum experiment that could prove reality doesn't exist
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Space
Satellites and junk are littering space and ruining our night skies
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Environment
Andreas Malm interview: Why climate protesters need to embrace unrest
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Health
Are vegan meat alternatives putting our health on the line?
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Space
Steve Chien interview: Why NASA is inventing curious AI for deep space
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Health
The controversial new clinical trials that promise faster results
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