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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.

Lost in Space-Time

Each month, we hand over the keyboard to a physicist or mathematician to tell you about fascinating ideas from their corner of the universe. You can sign up to the Lost in Space-Time newsletter here.
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Physics

Ultracold atoms could test relativity in the quantum realm

Confining and rotating extremely cold atoms or molecules within atomic “Ferris wheels” made from laser light could test relativity’s predictions on the quantum scale

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Satellite-filled sky

Earth

How worried should we be about noxious chemicals from dead satellites?

Features

Once Upon a Time in Space book - James Bluemel Cosmonaut Valeriy Polyakov seen in Mir?s window from Shuttle Discovery STS063-711-080 (6 Feb. 1995) --- Cosmonaut Valeriy V. Polyakov, who boarded Russia's Mir Space Station on January 8, 1994, looks out Mir's window during rendezvous operations with the Space Shuttle Discovery. This is one of 16 still photographs released by the NASA Johnson Space Center (JSC) Public Affairs Office (PAO) on February 14, 1995. Onboard the Discovery were astronauts James D. Wetherbee, mission commander; Eileen M. Collins, pilot; Bernard A. Harris, Jr., payload commander; mission specialists C. Michael Foale, Janice E. Voss, and cosmonaut Vladimir G. Titov. Page 134

Space

See the beauty of space, captured by the astronauts who experienced it

Regulars

Space

Is the universe really one big black hole?

Comment

Do black holes exist and, if not, what have we really been looking at?

Space

Do black holes exist and, if not, what have we really been looking at?

Features

Physics

Ultracold clocks could reveal how quantum physics alters time

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A bright star emitting streaks of light that curve outwards as the star moves across the night sky

Space

How faster-than-light explosions could reveal the universe’s secrets

Features

Geometric 3d render shower of decorative starry short lines. Digital waterfall made futuristic straight shapes with random repetition. Tears outer space falling in rays bright stars.; Shutterstock ID 1952851798; purchase_order: -; job: -; client: -; other: -

Physics

Should it be space-time or spacetime – and why does it matter anyway?

Comment

NASA Astronaut John Glenn inside a vacuum chamber

Video

Inside the missions that made the moon landings possible

Video

Lunar Crater Radio Telescope: Illuminating the Cosmic Dark Ages This illustration depicts a conceptual Lunar Crater Radio Telescope on the Moon?s far side. The early-stage concept is being studied under grant funding from the NASA Innovative Advanced Concepts program but is not a NASA mission. Credit: Vladimir Vustyansky

Space

Could a huge lunar telescope be our best chance of spotting aliens?

In this latest instalment of Future Chronicles, an imagined history of future inventions, Rowan Hooper explores the advances that meant an optical telescope with an effective mirror size of 3000 km could be built on the moon

Comment

Space

NASA's first space photos restored in stunning detail

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Space

Why auroras are so much brighter and more easily visible recently

Features

Space

CPR in space could be made easier by chest compression machines

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Space

New moon discovered orbiting Uranus is its smallest one

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