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marine life

Alien megaprojects: The hunt has begun

Life

Alien megaprojects: The hunt has begun

With scans for alien radio signals drawing a blank, three teams are now searching for signs of extraterrestrial engineering, as Stephen Battersby reports

Features

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NASA planet-hunter is injured and resting

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Alien hunting: how to find DNA on Mars

Life

Alien hunting: how to find DNA on Mars

Analysis

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Life

Meteorite's left-handed molecules a blow to ET search

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Curled-up young fern frond

Life

Life: is it inevitable or just a fluke?

Features

Budget cuts put alien search on hold

Space

Budget cuts put alien search on hold

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Alien-life claims spark monster mud-slinging

Life

Alien-life claims spark monster mud-slinging

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To boldly sow: Seeding the galaxy with Earthly life

Life

To boldly sow: Seeding the galaxy with Earthly life

Features

Could we detect trees on other planets?

Life

Could we detect trees on other planets?

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Arsenic-based bacteria point to new life forms

Life

Arsenic-based bacteria point to new life forms

Bacteria that grow without the essential element phosphorus have been isolated from California's Mono Lake

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Life

Stingy aliens may call us on cheap rates only

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Life

Look for Mars life with laughing gas

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Life

District 9: Science is the casualty in human-alien conflict

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Life

Timeline: The evolution of life

Features

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