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Space

Darwinian spacecraft engine to last twice as long

Ion engines could reach even further into space, as engineers use a genetic algorithm to suggest a grid design that could double lifetime expectancy

News

Technology

Iran's nuclear fuel swap may not prevent sanctions

News

Why deep-water oil spills do their damage deep down

Earth

Why deep-water oil spills do their damage deep down

News

What the climate bill means for the US way of life

Earth

What the climate bill means for the US way of life

News

Maiden voyage for first true space sail

Space

Maiden voyage for first true space sail

News

Oil industry failed to heed blowout warnings

Earth

Oil industry failed to heed blowout warnings

News

Bugs will give us free power while cleaning our sewage

Earth

Bugs will give us free power while cleaning our sewage

News

Bertrand Piccard: Flying around the world on sunlight

Technology

Bertrand Piccard: Flying around the world on sunlight

Opinion

Plenty of wave energy to be harvested close to shore

Earth

Plenty of wave energy to be harvested close to shore

News

Earth

Republicans won't be nudged into cutting home energy

Tell an electricity-guzzling US household that they use more than the neighbours and they'll probably cut back – unless they're conservatives

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Earth

Green machine: Generating more light than heat

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Earth

Deepwater Horizon: scrutiny falls on blowout preventer

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Earth

Oil slick fight continues with robots and fire

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Earth

Green machine: Cheaper home power from sunlight

News