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New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Why quantum physics says there’s a multiverse

Video

Why quantum physics says there’s a multiverse

Most people think the multiverse is just about "what-if" scenarios – other versions of you where you took that job in another city or turned left instead of right. But to a physicist, the multiverse isn't a storytelling device; it’s a mathematical consequence of our best theories of the universe

Video

A pill capsule with glowing green contents

Physics

We need more radioactive drugs. Can we make them from nuclear waste?

Features

Nanodiamonds

Physics

Diamonds are surprisingly elastic when you make them tiny

News

Aerial shot of Chernobyl nuclear reactors with straight canals around in spring; Shutterstock ID 1387140884; purchase_order: -; job: -; client: -; other:

Physics

The biggest threat to Chernobyl is no longer radiation

Leader

A 3D illustration of the now debunked competing conspiracy theory that the Earth is flat, as it appears from land, rather than spherical. Earth texture maps courtesy of NASA.gov; Shutterstock ID 1240127368; purchase_order: -; job: -; client: -; other:

Physics

What would the horizon look like on a disc-shaped planet? part 3

Regulars

Physics

The stunning physics of Project Hail Mary go back to ancient China

Comment

Scientist of the Institute for Safety Problems of Nuclear Power Plants of the NAS of Ukraine in the Chernobyl Exclusion Zone, Ukraine, December 15, 2025. Anatoly Doroshenko

Physics

The man who crawls into the perilous heart of the Chernobyl reactor

Features

Chernobyl 2022

Physics

Exclusive report: Inside Chernobyl, 40 years after nuclear disaster

Features

Physics

Quantum batteries could be charged by reversing time

News

Physics

Physicists resolve a long-standing puzzle over the size of a proton

Two extremely precise experiments agree with a previously shocking measurement of just how big the proton is, which may help future searches for new particles

News

Physics

Quantum entanglement can be measured in solids for the first time

News

Physics

The invisibility cloak inventor now has better tricks up his sleeve

Features

Physics

Particles seen emerging from empty space for first time

News

Physics

How a century-long argument over light’s true nature came to an end

Comment