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Stay informed with commentary and opinion pieces on the latest issues in science, technology, health and the environment, written by expert New Scientist journalists and world-leading researchers and thinkers.

Physics

Why no one can agree on what quantum physics really means

For a century, quantum theory has passed every experimental test, but physicists can鈥檛 agree on how to use it to paint a picture of our reality 鈥� or even whether that is possible

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A majestic oak tree seen from the base, its thick trunk covered in moss and reaching up into a canopy of vibrant green leaves. The branches spread wide against a bright sky.; Shutterstock ID 2527834681; purchase_order: -; job: -; client: -; other: -

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Trees have a microbiome inside them? This is both obvious and profound

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Humans

Introvert, extravert, otrovert? There’s a new personality type in town

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Senior couple (aged 65-69) hiking together on a coastal path

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Why ageing doesn’t have to mean years of poor health

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2H2KWEA Big Bang to Present. Stages in the history of the Universe after the Big Bang. At 300, 000 years, matter and radiation decouple, and the Universe becomes transparent for the first time. The first galaxies form at around 300 million years after the Big Bang, but the exact time period is uncertain. At an age of 9 billion years the Solar System formed. Finally, 13.7 billion years after the Big Bang we arrive at the present day. The Universe is still expanding and evolving.

Physics

What happens to light’s energy when it redshifts? It’s complicated

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Could this be the way to get the world exercising?

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Mandatory Credit: Photo by Blondet Eliot/ABACA/Shutterstock (15320742p) This photo taken on May 26, 2025, during a ministerial visit to Novo Nordisk factory in Chartres, France, shows medicines (injection solution and injection pen for Ozempic, Wegovy, etc...) on the production line. Illustration - Novo Nordisk Factory - Chartres, France - 26 May 2025

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We should consider testing Ozempic on healthy people

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Space

New NASA head wants to build a nuclear reactor on the moon 鈥� but why?

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Mind

What are the best ways to improve your cognitive reserve?

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Mathematics

These centuries-old equations predict flowing fluid 鈥� until they don鈥檛

We use the Navier-Stokes equations every day, for applications from building rockets to designing drugs. But sometimes they break 鈥� and we don鈥檛 know why

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Mind

Why living in a volatile age may make our brains truly innovative

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Technology

How invisibility cloaks could make us disappear 鈥� at least from AI

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Let a breakthrough in measuring body clocks ease the ills of shiftwork

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Technology

Social media is dead 鈥� here鈥檚 what comes next

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