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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.
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

As the list of health benefits of semaglutide drugs grows, perhaps it is time to think about assessing their impact on people without medical conditions

Leader

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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Could this be the way to get the world exercising?

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Space

New NASA head wants to build a nuclear reactor on the moon – 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 – until they don’t

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

Mind

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

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RC9MHB Rome, Italy, 05/06/2018: a street artist simulates an invisible man on the pedestrian area along tevere castello near castel sant'angelo.

Technology

How invisibility cloaks could make us disappear – at least from AI

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Team of EMS Paramedics React Quick to Provide Medical Help to Injured Patient and Get Him in Ambulance on a Stretcher. Emergency Care Assistants Arrived on the Scene of a Traffic Accident on a Street.

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

Leader

Tapping into the full power of music could transform our lives

Mind

Tapping into the full power of music could transform our lives

From reducing pain to relieving stress, the evidence for music's power is strong. Stefan Koelsch says we should use it – now

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Humans

Homo naledi's burial practices could change what it means to be human

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Technology

Social media is dead – here’s what comes next

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Space

How to spot the Delta Aquariids meteor shower this month

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Earth

We've found that a new type of rock is forming from old slag heaps

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