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extraterrestrial life

Alien-life claims spark monster mud-slinging

Life

Alien-life claims spark monster mud-slinging

As the scientific community recoils from the latest "close encounter" with ET, Â鶹´«Ã½ asks: what would convincing evidence of alien life look like?

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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

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Life

Stingy aliens may call us on cheap rates only

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Look for Mars life with laughing gas

Life

Look for Mars life with laughing gas

News

<i>District 9</i>: Science is the casualty in human-alien conflict

Life

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

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Timeline: The evolution of life

Life

Timeline: The evolution of life

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