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computer-generated view of Mars at the boundary between darkness and daylight, with an area including Gale Crater

Space

Mars may once have had a much larger moon

There are two small moons in orbit around Mars today, but both may be remnants of a much larger moon that had enough of a gravitational pull to drive tides in the Red Planet's lost lakes and seas

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Quantum representation

Physics

Qubits break quantum limit to encode information for longer

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drug-resistant Neisseria gonorrhoeae bacteria

Health

New antibiotic could stave off drug-resistant gonorrhoea

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Technology

Disney and OpenAI have made a surprise deal – what happens next?

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Killer whales and Pacific white-sided dolphins

Life

Killer whales and dolphins are ‘being friends’ to hunt salmon together

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False-colour nuclear magnetic resonance (NMR) image of a human head

Health

Supposedly distinct psychiatric conditions may have same root causes

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SNR 0519, the remnant of a supernova that exploded about 600 years ago

Space

Earth and solar system may have been shaped by nearby exploding star

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Reconstruction of the city of Wroxeter in Roman Britain

Humans

Roman occupation of Britain damaged the population’s health

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Environment

China's carbon emissions may have started to fall in 2025

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Life

De-extinction was big news in 2025 – but didn't live up to the hype

Biologists poured cold water on Colossal Biosciences’ claim to have brought the dire wolf back from extinction, and some worry the overblown headlines will undermine conservation work

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Technology

AI firms began to feel the legal wrath of copyright holders in 2025

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Life

A spectacular showcase of animal pictures from 2025

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Humans

The most amazing archaeology photos and discoveries of 2025

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Mind

People saw a new colour for the first time in 2025

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