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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

Is ADHD on the rise? No – but that answer doesn’t tell the whole story

Despite reports of a recent surge in ADHD, a global analysis has found no reliable evidence of an increase in the number of children diagnosed with the condition since 2020

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DGYATR 5503. PART OF THE ISAIAH SCROLL, THE LONGEST AND OLDEST (C. 100 B.C.) OF THE DEAD SEA SCROLLS FOUND IN QUMRAN.

Humans

Dead Sea Scrolls analysis may force rethink of ancient Jewish history

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The eye is first drawn, in this new NASA/ESA/CSA James Webb Space Telescope Picture of the Month, to the central mega-monster that is galaxy cluster Abell S1063. This behemoth collection of galaxies, lying 4.5 billion light-years from Earth in the constellation Grus (the Crane), dominates the scene. Looking more closely, this dense collection of heavy galaxies is surrounded by glowing streaks of light, and these warped arcs are the true object of scientists??? interest: faint galaxies from the Universe???s distant past. Abell S1063 was previously observed by the NASA/ESA Hubble Space Telescope???s Frontier Fields programme. It is a strong gravitational lens: the galaxy cluster is so massive that the light of distant galaxies aligned behind it is bent around it, creating the warped arcs that we see here. Like a glass lens, it focuses the light from these faraway galaxies. The resulting images, albeit distorted, are both bright and magnified ??? enough to be observed and studied. This was the aim of Hubble???s observations, using the galaxy cluster as a magnifying glass to investigate the early Universe. The new imagery from Webb???s Near-Infrared Camera (NIRCam) takes this quest even further back in time. This image showcases an incredible forest of lensing arcs around Abell S1063, which reveal distorted background galaxies at a range of cosmic distances, along with a multitude of faint galaxies and previously unseen features. This image is what???s known as a deep field ??? a long exposure of a single area of the sky, collecting as much light as possible to draw out the most faint and distant galaxies that don???t appear in ordinary images. With 9 separate snapshots of different near-infrared wavelengths of light, totalling around 120 hours of observing time and aided by the magnifying effect of gravitational lensing, this is Webb???s deepest gaze on a single target to date. Focusing such observing power on a massive gravitational lens, like Abell S1063, therefore h

Space

Peer into the early universe as light bends around huge galaxy cluster

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Environment

Rivers are leaking ancient carbon back into the atmosphere

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Health

Massaging the neck and face may help flush waste out of the brain

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Technology

Quantum computers are on the edge of revealing new particle physics

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Chemistry

Adhesive made from wood works in a standard glue gun

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Technology

Can AI understand a flower without being able to touch or smell?

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Life

Crafty cockatoos learn to use public drinking fountains

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Health

Infant RSV shot may be more effective than vaccines during pregnancy

When an RSV vaccine became available for use during pregnancy, it offered a natural experiment between various countries to see how it compared to a one-time antibody injection

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Society

NASA is facing the biggest crisis in its history

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Space

Why it’s taking a century to pin down the speed of the universe

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Life

Dinosaur’s water-loving nature brought to life in BBC show

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Life

Super-invasive termites could spread from Florida around the world

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