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News

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.

Fireball in South Carolina. Screenshot from Facebook video posted by Kathryn Rose Farr on 26 Jun 2025

Space

Mystery fireball spotted plummeting to Earth over the US

There have been hundreds of reports of sightings of a “fireball” in the skies over the southern US – it may have been a meteor breaking up as it falls through Earth’s atmosphere

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Life

Ash trees are rapidly evolving some resistance to ash dieback disease

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Mind

Deep sleep seems to lead to more eureka moments

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Earth

These rocks are probably the last remains of Earth’s early crust

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Enigmacursor dinosaur in conservation
Life

A closer look at Enigmacursor, the newly discovered dinosaur species

Video

Environment

Nearly a third of Tuvaluans have applied for climate migration visa

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Environment

Extreme winter weather isn’t down to a wavier jet stream

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Society

Independent estimate of Gaza deaths is higher than official figures

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Humans

Ancient mammoth-tusk boomerang is twice as old as we thought

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Health

Gastric bypass surgery may cut the risk of bowel cancer

Weight-loss surgery seems to lower the risk of colorectal cancer by changing where bile acids enter the small intestine, raising the possibility of developing treatments that mimic these effects

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Health

Cancer cells steal mitochondria from nerve cells to fuel their spread

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Space

Look inside the revolutionary Vera C. Rubin Observatory

Video

Technology

Generation Alpha’s coded language makes online bullying hard to detect

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Health

Heart attacks are no longer the leading cause of death in the US

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