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Physics

The laws of physics were broken in 2023 - by sperm

�鶹��ý's most popular story of the year was about the discovery that sperm break Isaac Newton's third law of motion

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Escherichia coli

Life

Life may be less chaotic than we thought, say physicists

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This illustration shows NASA's Cassini spacecraft diving through the plume of Saturn's moon Enceladus, in 2015

Space

Cyanide in the ocean of Saturn's moon Enceladus could be good for life

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Space

Mercury has salt glaciers that could provide the conditions for life

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The UFO shines on a male standing on the mountain; Shutterstock ID 1476587882; purchase_order: -; job: -; client: -; other: -

Space

Our hunt for alien life needs solid guidelines for clear-cut success

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FG10H1 JUPITER: EUROPA, 1979. /nJupiter's moon, Europa. Photographed by Voyager 2, 1979.

Space

How excited should we be by signs of life spotted on alien worlds?

Features

Hair seems to help shrimp move through water

Life

Hairy legs make you swim better – if you're a shrimp

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Space

Comets may bring ingredients for life most easily to clustered planets

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An illustration of the early surface of Earth with a volcano erupting in the background.

Life

How we will discover the mysterious origins of life once and for all

Features

A male lion and a cub

Life

Do animals know that sex leads to babies?

The time delay between sex and offspring makes identifying the cause and effect a little complicated. Humans have language to explain how reproduction works, but for other animals it may be far less clear

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Earth

Nearly all mammals will go extinct in 250 million years as Earth warms

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Life

The strange plant that just might be the worst smell on the planet

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Physics

A brief history of the standard model, our theory of almost everything

Features

Space

How the JUICE mission will look for habitability on Jupiter's moons

Features