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International Space Station

What the huge young galaxies seen by JWST tell us about the universe

Space

What the huge young galaxies seen by JWST tell us about the universe

A few months ago, the James Webb Space Telescope spotted six early galaxies that were so large they threatened to break our best theory of how the cosmos evolved. Did they?

Features

Humans could bring microbes into space

Space

Space germs: How can we avoid contaminating other worlds?

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Space

Planned moon landings could pelt orbiting spacecraft with dusty debris

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JWST has spotted a water vapor plume shooting out from the southern pole of Saturn鈥檚 moon Enceladus

Space

JWST has spotted an enormous plume of water coming out of Enceladus

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NASA's group that studies UAPs is holding its first public meeting

Space

NASA鈥檚 UFO team discusses its findings publicly for the first time

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We are finally closing in on the cosmic origins of the 鈥淥MG particle鈥

Space

We are finally closing in on the cosmic origins of the 鈥淥MG particle鈥

Features

Supermassive black hole. Elements of this image furnished by NASA.; Shutterstock ID 1756053335; purchase_order: -; job: -; client: -; other: -

Space

Lab imitations of the unobservable cosmos can be genuinely insightful

Leader

Why sending messages to extraterrestrials is controversial

Space

Why sending messages to extraterrestrials is controversial

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Milky Way. Night sky and silhouette of a standing man

Space

Questions I dread: How did the universe begin, and what is space-time?

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CE8NB6 Illustration showing galaxy giant whirlpool in space galaxy's effect on space image shows how gravity galaxy warps local

Physics

To create a wormhole that doesn't collapse, you need exotic matter

Making a wormhole that a human could theoretically travel through would require an upside-down universe and negative energy

Features

Physics

Why darkness between stars reveals more about the universe than light

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Space debris problem highlighted in new series of photographs

Regulars

Space

Alien messages responding to NASA signals could reach us by 2029

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Space

JWST has spotted the most distant galaxy cluster ever seen

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