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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.

The Maquan River, the upper section of the Yarlung Tsangpo River, which flows through the Tibetan Plateau

Humans

Ancient humans lived in an ‘uninhabitable’ climate 25,000 years ago

Bones dating back 25,000 years suggest that humans lived in extremely icy conditions in Tibet, which were previously thought to be uninhabitable

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Technology

Revealed: How the UK tech secretary uses ChatGPT for policy advice

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Mars appears light blue in this near-infrared image from the Hera spacecraft, with its moon Deimos represented by a dark mark towards the centre of the image

Space

Hera asteroid mission takes stunning images of Mars’s moon Deimos

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Environment

California isn’t clearing forests fast enough to tame wildfires

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Environment

Climate experiment predicts how trees may respond to future CO2 levels

Video

Space

Quartz crystals on Mars could preserve signs of ancient life

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Health

The 13 drugs and supplements that could slow brain ageing

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NASA Webb Wows With Incredible Detail in Actively Forming Star System At the center is a thin vertical cloud known as Lynds 483 that is shaped like an hourglass with irregular edges. At lower center are two discrete bright white, tiny blobs of light that have raced away from the hidden central stars. The top lobe shows a more prominent orange U-shape. Orange bleeds into light purple, and brighter pink at its edges. Some background stars are visible through sections of this lobe. Higher up, there is an orange arc. Some brighter pink material extends to the top edges near the center. In the lower lobe, less orange is visible. More opaque light purple is in its top third, rippling out into semi-transparent blues and pinks. The lower lobe has more texture. V-shapes left and right of the lobes are darkest, and the background stars in these areas appear orange. Elsewhere, the black background of space is clearer, speckled with tiny white stars and faint orange galaxies. Shimmering ejections emitted by two actively forming stars make up Lynds 483 (L483). High-resolution near-infrared light captured by NASA?s James Webb Space Telescope shows incredible new detail and structure within these lobes. Credits: NASA, ESA, CSA, STScI

Space

See a shimmering hourglass-shaped star system in exquisite detail

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Humans

Ancient face bones offer clues to identity of early humans in Europe

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Environment

Do we finally understand what caused record heat in 2023 and 2024?

Scientists have struggled to explain why global temperatures have shot up in recent years, but ocean cloud cover has now emerged as a crucial piece of the puzzle

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Chemistry

Metals can be squeezed into sheets just a few atoms thick

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Technology

The first operating system for quantum networks has been built

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Health

Signs of Terry Pratchett’s dementia may have been hidden in his books

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Technology

Doubts cast over D-Wave’s claim of quantum computer supremacy

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