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origins of life

Space

Dozens of stars show signs of hosting advanced alien civilisations

Sufficiently advanced aliens would be able to capture vast quantities of energy from their star using a massive structure called a Dyson sphere. Such a device would give off an infrared heat signature - and astronomers have just spotted 60 stars that seem to match

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Illustration of life forms on a hypothetical planet with a slightly lower mass than the Earth. It has shallow seas and extreme tides due to its large moon (thin crescent at left). The vegetation is translucent which allows the light to shine through, so it seems to be glowing, due to it being backlit in this image.

Comment

The hunt for alien planets and extraterrestrial life

Culture

Eruption of Strokkur Geysir in Iceland

Life

Protocells on early Earth may have been formed by squeezing geysers

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Space

Planets that look alike might be a sign of spacefaring aliens

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3d rendered medically accurate illustration of amino acids

Life

Life’s vital chemistry may have begun in hot, cracked rock

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Space

Europa’s seafloor may be impenetrable and inhospitable to life

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cross-section through Europa

Space

Europa may have less oxygen to fuel life in its seas than we thought

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How our golden age of asteroid exploration could reveal life's origins

Space

How our golden age of asteroid exploration could reveal life's origins

Features

Space

Why space dust is key to everything from star birth to life on Earth

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Space

Habitable ocean world K2-18b may actually be inhospitable gas planet

An exoplanet called K2-18b has been suggested as a good place to look for alien life, but a new analysis shows it is probably made from gas

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Space

Why we're finally on the cusp of finding exomoons around other planets

Features

Chemistry

Casimir Funk: The scientist who gave us the word 'vitamin'

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Life

Does trophy hunting actually help animal conservation?

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Chemistry

Crucial chemical for life can form in conditions found on early Earth

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