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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.

Health

Long covid linked to signs of ongoing inflammatory responses in blood

People with long covid after a serious covid-19 infection have raised levels of many immune molecules in their blood. Better understanding how these molecules can vary could lead to more targeted treatments

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Humans

Stone Age blades could have been used for butchery, not just hunting

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A time-sequence composite of the August 21, 2017 total solar eclipse

Space

Eclipse 2024 live: Watch the full NASA broadcast – latest

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Total eclipse of the Sun. The moon covers the sun in a solar eclipse.

Space

When is the next total solar eclipse visible from the UK?

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Health

Cannabis use in pregnancy may raise children’s risk of ADHD and autism

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Space

Eclipse chasers: Why NASA jets will pursue solar totality

Video

Space

5 solar eclipse activities to do with children

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Space

We finally know why Stephen Hawking’s black hole equation works

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Life

Suppressing wildfires is harming California’s giant sequoia trees

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Space

How a total solar eclipse in 1919 left physicists ‘more or less agog’

One total solar eclipse changed physics forever – and even to this day these celestial phenomena are astonishing viewers and teaching us crucial lessons about the universe

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Space

ESA’s Proba-3 mission will create an eclipse on demand to study sun

Video

Life

Left-handed monkeys prompt rethink about evolution of right-handedness

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Mathematics

The mathematician who worked out how to time travel

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Environment

How mass bleaching has pushed the Great Barrier Reef to the brink

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