Cities

  • Nasa unfurls giant solar sail – and you can see it from Earth

    Centuries after it was first theorised, the sunlight propulsion method could herald a new era of space exploration Nasa has unfurled a solar sail in space for the first time, aiming to harness the propulsive power of sunlight for interstellar travel. The US space agency revealed that it had deployed the solar sail 1,000 kilometres (600…

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  • Framing NZ as first world country isn’t realistic

    Framing New Zealand as an Oceanic country with strong Asian connections makes more sense than a frame derived from Europe, given our location, economic and population relationships. Photo: Getty Images How useful really is our adversarial, executive-dominated, single chamber Parliament? As Dorothy Parker said of heterosexuality ‘it is not normal, it’s just common’. Opinion: We are…

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  • Clean energy investment is set to double that of fossil fuels – here’s how developing nations can also benefit

    Ensuring emerging countries can develop renewable energy projects is one element of the ‘just transition’. Image: REUTERS/Joachim Herrmann TPX IMAGES OF THE DAY A major milestone is set to be reached this year in the fight to tackle the climate crisis – global investment in clean energy will reach almost double the amount going to…

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